B. R. Sharma

Professor, Department of Mathematics
  • Phone No. - 09435130560
  • Department of Mathematics
  • Designation - Professor

Profile

Education:

  1. Bachelor’s Degree : 1978, Dibrugarh University.
  2. Master’s Degree : 1980, Dibrugarh University.
  3. Ph.D.: 1990, Dibrugarh University

 

Professional Experience: 33(Thirty-three) years of teaching experience at Post Graduate level and Research experience.

 

Areas of Interest/ Specialization: Fluid Dynamics, MHD, Heat and Mass Transfer, Porous Media Flow.

 

Research Projects:

  1. Coordinator of the UGC SAP DRS (I)   “Mathematical Modelling".
  2. Principal Investigator of UGC Major Research Project “Effects of Pressure Gradient and Temperature Gradient on Separation of Binary Fluid Mixture”.
  3. Coordinator of the UGC SAP DRS (II) “Mathematical Modelling in different areas with plasma Dynamics”.(For three years upto Dec., 2015)

 

Ph.D Scholars:

Sl. No.

Name

Topic

Status

(On-going /Completed)

1

Niaz Ali Shah

Separation of a Binary Fluid Mixture under the effect of Temperature Gradient and Pressure Gradient.

Completed

2

Ram Niroj Singh

The Effect of Pressure Gradient and Temperature Gradient on Separation of a Binary Fluid Mixture.

Completed

3

Kabita Nath

Effect of Pressure Gradient and Temperature Gradient on Separation of a Binary Fluid Mixture.

Completed

4

Rupam Kr. Gogoi

Effect of Magnetic Field on Separation of a Binary Fluid Mixture.

Completed

5

Hemanta Konwar

Some Aspects of Flow, Heat and Mass Transfer Problems in Incompressible Viscous Fluids.

Completed

6

Animesh Aich

A Study on Thermo-diffusion in Porous Media

Completed

7

Debozani Borgohain

A Study on Soret Effect in Porous Media.

Completed

8

Bismita Buragohain

Numerical Study of Soret and Dufour Effects on Some Unsteady Flow Problems of Viscous Fluids.

Completed

9

 

___

10

 


11


Nabajyoti Dutta

 

_____________

Surajit Dutta 

 


 

Krishnanandan Varma

Numerical Study of Thermal Radiation and Chemical Reaction Effects on Some Unsteady Flow Problems of Viscous Fluids

___________________________________________________

Studies of Some Magnetohydrodynamics Flow Problems of Micropolar Fluids with Variable Viscosity and Thermal Conductivity


NUmerical Studies of Soret Effect on Certain flow Problems

Completed

 

________________

Thesis Submitted

 


 

 On-going


 

Administrative Assignments: Former Head, Department of Mathematics.

                                                  Dean, Faculty of Science and Engineering

Consultancy:                                                                     

Life member of

  • Assam Academy of Mathematics
  • Indian Society of Theoretical and Applied Mechanics.

Member of Board of Studies of:

  • Nagaland University.

Member of the School Board of:

  • Physical Sciences of North Eastern Hill University, Shillong.

Publications

Research Publications:

1. “Flow of a Second-Order Fluid through a Circular Pipe and its surrounding Porous Medium” (Jointly with A. C. Srivastava) published in Mathematical Forum, Vol. VIII, No. 2, pp. 20-28, 1991. 

2. “Fully Developed Laminar Flow in a Porous Rectangular Duct” published in Mathematical Forum, Vol. VIII, No. 2, pp. 20-28, 1992.

3.  “The Flow and Heat Transfer of a Viscous Fluid Confined between a Rotating Disk and a Porous Medium of Finite Thickness” (Jointly with A.C. Srivastava) published in Journal of Mathematical and Physical Sciences, Vol.26, No.6, pp. 539-547, 1992. 

4. “The Flow of a Second-Order Fluid between a Solid Rotating Circular Cylinder surrounded by a Co-axial Cylindrical Porous Medium” (Jointly with B. Barman), published in Proceedings of 38th Congress of ISTAM, IIT Kharagpur, pp. 9-12, 1993. 

5.  “Baro Diffusion and Thermal Diffusion in a Binary Mixture” (Jointly with N. A. Shah), published in Journal of Mathematical and Physical Sciences, Vol. 30, No. 4, pp.169-179, 1996.   

6. The Effect of Curvature of a Curved Annulus on Separation of a Binary Mixture” (Jointly with Rupam K. Gogoi) published in the Proceeding of the 46th Annual Technical Session, Assam Science Society, Guwahati, Assam, Vol. 2, pp. 81-89, 2000. 

7. “Flow of a viscous Fluid due to a rotating Disk in presence of an infinite saturated Porous Medium at a small Distance from the Disk”, published in Mathematical Forum, Vol. XIV, pp. 39-52, 2001-2002. 

8. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture near a Stagnation Point - A Numerical Study”, (Jointly with G. C. Hazarika), published in The Nepali Math. Sc. Report, Vol.  20, No. 1& 2, pp. 65-73, 2002. 

9.  “The Effects of Pressure Gradient and Temperature Gradient on Separation of Incompressible Viscous Fluids filling the Space outside a Uniformly Rotating Cylinder”, (Jointly with N.A. Shah), published in the Proceeding of the 47th Annual Technical Session, Assam Science Society, Guwahati, Assam, Vol. 3, pp. 72-81,2002. 

10. “The Effects of Pressure Gradient and Temperature Gradient on Separation of a Binary Mixture of Incompressible Viscous Fluids Confined between Two Disks”, published in Proceedings of 47th Congress of ISTAM, IIT Kharagpur, pp. 218-225, 2002. 

11. “Baro Diffusion and Thermal Diffusion in a Binary Mixture of Electrically Conducting Incompressible Fluids due to Rotation of a Circular Cylinder”, published in Bulletin of Pure and Applied Sciences, Vol. 22E, No. 1, pp. 79-87, 2003. 

12. “Soret Effect in Generalized MHD Couette Flow of a Binary Mixture” (Jointly with R. N. Singh), published in Bulletin of Calcutta Mathematical Society, Vol. 96, No. 5, pp. 383-390, 2004.

13. “Pressure Diffusion and Soret Effect in a Binary Fluid Mixture”, published in Bulletin of Pure and Applied Sciences, Vol. 23E, No. 1, pp. 165-173, 2004.

14.“Influence of Magnetic Field on Separation of a Binary Fluid Mixture in Free Convection Flow Considering Soret Effect”, (Jointly with G. C. Hazarika and R. N. Singh) published in Journal of National Academy of Mathematics”, Vol. 20, pp.1-20, 2006. 

15. Soret Effect due to Natural Convection between heated Vertical Plates in a Horizontal Magnetic Field”, (Jointly with R. N. Singh) published in Ultra Science, Vol. (1)M, pp. 97-106, 2007. 

16. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture Confined between Two Parallel Disks in presence of a Small Magnetic Field”, (Jointly with R. N. Singh) published in Latin American Applied Research, Vol. 38, No. 4, pp. 313-320, 2008.

17. “Thermal Diffusion of a Binary Fluid Mixture Confined between two Concentric Circular Cylinders in presence of a Radial Magnetic Field”,(Jointly with R. N. Singh), published in Journal of Energy, Heat and Mass Transfer, Vol.31, pp.27-38, 2009.

18. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture Confined in an inclined Channel in presence of a Weak Magnetic Field”, (Jointly with R. N. Singh), published in Proceedings of National Academic of Sciences, India, sec A, Vol.79, Pt. III, pp. 273-278, 2009.

19. “Separation of Species of a  Binary Fluid Mixture Confined between two Concentric rotating Circular Cylinders in presence of a strong radial Magnetic Field”, (Jointly with  R. N. Singh), published in Heat and Mass Transfer, Vol.79, Pt. III, pp. 273-278, 2010.

20. “Skin Friction and Mass Transfer in Porous Medium using Brinkman-Forchheimer Model”, (Jointly with R. N. Singh), published in Mathematical Forum, Vol.79, pp. 73-78, 2010.

21. “Thermal Diffusion in a Binary Fluid Mixture flow due to a Rotating Disc of Uniform High Suction in Presence of a Weak Axial Magnetic Field”, (Jointly with  R. N. Singh), published in Theoret. Appl. Mech., Vol. 37, No.3, pp. 161-187, Belgrade, 2010.

22. “Effect of a strong Transverse Magnetic Field on Separation of species of a Binary Fluid Mixture in Generalised Couette Flow”, (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in International Journal of Applied Engineering Research , Vol. 6, No.19, pp. 2223-2235,  2011.

23. “MHD boundary layer flow over a porous surface using homotopy perturbation method” (Jointly with R. N. Singh), published in Ultra Scientist, Vol. 23(3)A, pp.747-754, 2011

24. “Separation of Species of a Binary Fluid Mixture Confined in a Channel  In Presence of a Strong Transverse Magnetic Field”, (Jointly  with  R. N. Singh, Rupam Kr. Gogoi and Kabita Nath), published in Hem. Ind., Vol. 66, No.2, pp.171-180, 2012.

25. “Effect of axial magnetic field on demixing of a binary fluid mixture due to the rotation of a heated sphere” (Jointly with Kabita Nath), International Journal of Computer Applications (ISSN: 0975-08887), Vol. 53, No.10, pp. 47-52, Sept. 2012.

26. “The effect of magnetic field on separation of binary mixture of viscous fluids by baro diffusion and thermal diffusion near a stagnation point-a numerical study” (Jointly with   Kabita Nath), published in International Journal of Mathematical Archive (ISSN: 2229-5046), Vol. 3, No.3, pp.1118-1124, 2012. 

27. “Soret and Dufour effects on separation of a binary fluid mixture in MHD natural convection flow in porous media” published in Mathematical Forum (ISSN: 0972-9852) Vol. XXIV, pp. 17-27, 2011-2012.

28. “Soret and dufour effects on separation of a binary fluid mixture in MHD Mixed convection flow in porous media” published in J. Nat. Acad. Math., Vol. 26, pp. 111-119, 2012.

29. “Effects of heat generation, thermal diffusion, magnetic field and chemical reaction on demixing of a binary fluid mixture” (Jointly with Kabita Nath), published in Journal of Applied Mathematics and Fluid Mechanics (ISSN: 0974-3170), Vol. 5, No.1, pp. 23-31, 2013.

30. “Soret effect due to natural convection between heated vertical plates with heat generation in a horizontal small magnetic field”, (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in International Journal of Computer Applications (ISSN: 0975-08887), Vol. 73, No.11, pp.1-8, 2013.

31.  “Separation of a binary fluid mixture due to Soret effect in unsteady MHD convection flow in porous medium” (Jointly with Kabita Nath), published in International Journal of Mathematics and Computer Applications Research (IJMCAR) (ISSN: 2249-6955), Vol. 3, No.4, pp. 23-31, 2013.

32. “Effects of magnetic Field and Variation of Viscosity and Thermal Conductivity on Separation of a Binary Fluid Mixture over a continuously Moving Surface” (Jointly with Kabita Nath), published in International Journal of Innovative Research in Science, Engineering and Technology IJIRSET) (ISSN: 2319-8753), Vol. 2, No.11, pp. 6516-6524,   2013.

33. “Influence of Chemical Reaction and Magnetic Field on Heat and Mass Transfer by Natural Convection from Vertical Stationary Flat Plate in Porous Media considering Soret and Dufour Effects”  (Jointly  with  Kabita Nath and Animesh Aich), published in  Global Research Analysis (ISSN: 2277-8160),Vol. 2, No.11, pp. 160-162,  2013.

34. “Effect of Radial Magnetic Field and Temperature Gradient on Separation of Components of a Binary Fluid Mixture Confined in an Annular Region”(Jointly with  Ram Niroj Singh and Rupam Kr. Gogoi), published in International Journal of Computer  Applications (ISSN: 0975-08887), Vol. 83, No. 5, pp. 30-35, 2013.

35. “Effects of magnetic field and temperature gradient on separation of a binary fluid mixture in unsteady Couette flow” (Jointly with  Ram Niroj Singh and Rupam Kr. Gogoi), published in  International Journal of Mathematical Archive  (ISSN: 2229-5046), Vol. 4, No.12, pp. 56-61, 2013.

36. “The effect of inclination of channel on separation of an incompressible thermally and electrically conducting viscous binary fluid mixture in  presence  of strong magnetic field” (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in American journal of Applied Mathematics, Vol. 2, No. 1, pp. 1-7, 2014.

37. “Influence of Chemical Reaction, Heat Source, Soret and Dufour Effects on Separation of a Fluid Mixture in MHD Natural Convection Flow in Porous Media” (Jointly with  Kabita Nath and Debozani Borgohain), published in   International Journal of Computer  Applications (0975-08887), Vol. 90, No. 2,  pp. 12-19, 2014

38. “Influence of the Order of Chemical Reaction and Soret Effect on Mass Transfer of a Binary Fluid Mixture in Porous Media” (Jointly with Debozani Borgohain), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No.7, pp. 14867-74, July 2014.

 39. “Flow, Heat and Mass Transfer due to Indirect Natural Convection” (Jointly with Hemanta Konwar), published in International Journal of Mathematics and Computer Applications Research (IJMCAR) (ISSN 2249-6955), Vol. 4, No.4, pp. 111-118, Aug 2014.

40. “Effect of Chemical Reaction on Mass Distribution of a Binary Fluid Mixture in Unsteady MHD Couette Flow” (Jointly with Hemanta Konwar), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No.8, pp.15545-52, August 2014.

41. “MHD Flow, Heat and Mass Transfer about a Horizontal Cylinder in Porous Medium

(Jointly with Hemanta Konwar), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No. 10, pp. 16459-69, October 2014.

42. “Effects of Heat Source, Chemical Reaction, Thermal Diffusion and Magnetic Field on Demixing of a Binary Fluid Mixture Flowing over a Stretched Surface” (Jointly  with   Kabita Nath),  published in Latin American Applied Research, Vol. 44, No. 4, pp. 339-43, 2014.

43. “ Influence of Variable permeability on Heat and Mass transfer due to free convection flow over a vertical flat plate in porous medium considering soret and dufour effects” (Jointly with Animesh Aich), published in International Journal of Sciences: Basic and Apllied Research  (IJSBAR)  (ISSN 2307-4531), Vol. 18, No.1, pp. 271-285,   2014.

44. “MHD Flow, Heat and Mass Transfer due to Axially Moving Cylinder in Presence of Thermal Diffusion, Radiation and Chemical Reactions in a Binary Fluid Mixture” (Jointly with Hemanta Konwar), published in International Journal of Computer Applications, Vol. 110, No. 15, pp. 52-59, 2015.

45. “Influence of Chemical Reaction, Heat source, Soret and Dufour Effects on Heat and Mass Transfer in Boundary Layer Flow over a Streching Cylinder Embedded in a Porous Medium using Brinkman-Forchheimer Extended Darcy Model” (Jointly with Animesh Aich), published in International Journal of Innovative  Research in Science, Engineering and Technology (IJIRSET)  (ISSN 2319-8753), Vol. 4, No.1, pp. 18635-44,   2015.

46. “Influence of Chemical Reaction, Magnetic Field and radiation on Heat and Mass Transfer by Free Convection Flow near the Lower Stagnation Point of an Isothermal Horizontal circular Cylinder in a Porous Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 116, No. 3, pp. 5-11, 2015.

47.  Influence of Chemical Reaction, Magnetic Field, Heat Source on Heat and mass Transfer by Free Convection Flow over a Stretching Cone Embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich),published in The International Journal Of Science & Tchnoledge (ISSN 321 –19X), Vol. 3, No.4, pp.226-235, April 2015.

48. “Effects of Heat Source, Chemical Reaction, Thermal Diffusion and Magnetic Field on Demixing of a Binary Fluid Mixture Flowing over a Stretched Surface” (Jointly  with   Kabita Nath),  published in Latin American Applied Research, Vol. 44, No. 4, pp. 339-43, 2014.  

49. “Influence of Chemical Reaction, Magnetic Field and radiation on Heat and Mass Transfer by Free Convection Flow near the Lower Stagnation Point of an Isothermal Horizontal circular Cylinder in a Porous Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 116, No. 3, pp.5-11, 2015.

50. “Influence of Chemical Reaction, Magnetic Field, Heat Source on Heat and mass Transfer by Free Convection Flow over a Stretching Cone Embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with Animesh Aich), published in The International Journal Of Science & Tchnology (ISSN 2321 –919X), Vol. 3, No. 4, pp. 226-235, April , 2015.

51. “Effect of Chemical Reaction on Mass Transfer due to a Permeable Rotating Disk” (Jointly with Hemant Konwar), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 119, No. 21, pp.2 26-35, 2015. 

52. “Flow Heat and Mass transfer about a Permeable Vertical Rotating Cone” (Jointly with   Hemant Konwar), published in International Journal of Fluid Engineering (ISSN 0974-3138), Vol. 7, No. 1, pp. 25-40, 2015.

53. “Influence of Chemical Reaction and Heat Generation on Heat and Mass Transfer due to a Rotating Heated Sphere” (Jointly with Hemant Konwar), published in Journal of Applied Mathematics and Fluid Mechanics   (ISSN 0974-3170), Vol.7, No. 1, pp. 39-49, 2015.

54.  Influence of Chemical Reaction, Magnetic Field and  Radiation on Heat and Mass transfer over a rotating disk embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with Animesh Aich),published in International Journal Of Scientific Research and education (ISSN 2321 –7545), Vol. 3, No. 7, pp. 4035-45, 2015.

55. “Soret and Dofour effects of Chemically Reacting MHD Mixed Convection Flow from a Rotating Vertical Cone in a Porous Medium” (Jointly with Debozoni Borgohain), published in International Journal Of Scientific Research and Development (ISSN 2321 –0613), Vol .3, No. 4, pp. 1713-20, 2015.

56. “Effects of Chemical Reaction, Soret and Dofour Number  on Unsteady MHD  Mixe3d Convection Flow in the Forward Stagnation Region of a Rotating Sphere in a Porous medium” (Jointly with Debozoni Borgohain), published in International Journal of Scientific & Engineering Research (ISSN 2229-5518),Vol. 16, No. 9, pp.1878-87, 2015.

57. “Effects of variable viscosity and thermal conductivity in indirect natural convection” (Jointly with Bismeeta Buragohain), published in International Research Journal of Engineering and Technology (ISSN: 2395-0056), Vol.2, No.06, pp. 35-39, 2015.

58. “Influence of chemical reaction and thermal radiation effects on MHD boundary layer flow over a moving vertical porous plate”, (Jointly with Nabajyoti Dutta), published in International Research Journal of Engineering and Technology (ISSN: 2395-0056), Vol.2, No.07, pp. 180-187, 2015.

59. “Chemical Reaction and Thermal Radiation Effects on Unsteady MHD Flow over an Infinite Vertical Oscillating Porous Plate with Heat Source”, (Jointly with Nabajyoti Dutta), published in International Journal for Research in Applied Science Engineering Technology (IJRASET) (ISSN: 2321-9653), Vol.3, Issue XI, pp. 423-431, November 2015.

60. “Soret and Dufour effects on steady MHD flow in presence of heat source through a porous medium over a non-isothermal stretching sheet” (Jointly with Animesh Aich), published in  IQSR Journal of Mathematics (ISSN 2319-765X), Vol. 12,Issue 1, Ver.1, pp. 53-60, Jan-Feb . 2016.

61. “ MHD flow, heat and mass transfer about a permeable rotating vertical cone in presence of Radiation, Chemical reaction and heat generation or absorption effects” (Jointly with Hemant Konwar), published in Latin American Applied Research    (ISSN  Vol.46, No. 4, pp. 109-114, 2016. 

62.  “ Chemical reaction and soret effects on unsteady MHD flow through porous medium with thermal radiation” (Jointly with Nabajyoti Dutta), published in International Journal of Advanced  Research and Review (ISSN: 2055-7277), Vol.1, Issue 7, pp. 41-50,  2016.

63. “ Chemical reaction and thermal radiation effects on unsteady MHD flow of an incompressible viscous fluid past a moving vertical cylinder” (Jointly with Nabajyoti Dutta), published in International Journal of Engineering Sciences and Research  Technology IJESRT (ISSN: 2277-9655), Vol.5, No. 8, pp. 536-544,   2016.

64. “ Soret and Dufour effects on unsteady free convective flow along a vertical surface adjacent to a porous medium” (Jointly with Bismeeta Borgohain), published in Global Journal for Research Analysis ,Vol. 5, Issue. 1, (ISSN: 2277-8160), pp.30-32, 2016.

65. “ Soret and Dufour effects on unsteady MHD flow past an oscillating vertical plate” (Jointly with Bismeeta Borgohain), published in International Journal for Innovative  Research in Science and technology,Vol. 2, Issue. 8, (ISSN: 2349-6010), pp. 101-105, 2016.

66. “Effects of Soret, Dufour, variable viscosity and variable thermal conductivity on unsteady free convective flow past a vertical cone”  (Jointly with Bismeeta Borgohain), published in American Journal of Heat vand Mass ,Vol. 4, No. 1, pp.53-63, 2017.

67. “Effects of variable viscosity and thermal conductivity on a mixed convective radiative MHD slip flow and heat transfer of a micropolar fluid over a vertical porous plate in the presence of heat source”  (Jointly with Surajit Dutta and G. C. Hazarika), published in  International Journal of Research and Analytical Reviews,Vol. 6, Issue 1, pp.649-664, 2019.

68.  “Influence of Soret and Dufour effects on unsteady flow past a moving horizontal cylinder” (Jointly with Bismeeta Borgohain), published in International Journal for Research in Engineering Application & Management (IJREAM),Vol. 04, Issue. 11, (ISSN: 2454-9150), pp. 108-111, 2019.

69.  “Unsteady free convective flow past a vertical cone in the presence of chemical reaction and thermal radiation effects” (Jointly with Nabajyoti Dutta), published in International Journal of Applied Engineering Research (ISSN: 0973-4562), Vol.14, No. 5, pp. 1084-1090,   2019.

70.  Effects of variable viscosity and thermal conductivity on micropolar fluid flow due to a stretching cylinder4 in presence of magnetic field.” (Jointly with Surajit Dutta and Gopal Chandra Hazarika), published in International Journal of Mathematical, Engineering and Management Sciences (ISSN: 0973-4562), Vol.4, No. 3, pp. 745-760,   2019. (https://dx.doi.org/10.33889/IJMEMS.2019.4.3-058

1. “Flow of a Second-Order Fluid through a Circular Pipe and its surrounding Porous Medium” (Jointly with A. C. Srivastava) published in Mathematical Forum, Vol. VIII, No. 2, pp. 20-28, 1991. 

2. “Fully Developed Laminar Flow in a Porous Rectangular Duct” published in Mathematical Forum, Vol. VIII, No. 2, pp. 20-28, 1992.

3.  “The Flow and Heat Transfer of a Viscous Fluid Confined between a Rotating Disk and a Porous Medium of Finite Thickness” (Jointly with A.C. Srivastava) published in Journal of Mathematical and Physical Sciences, Vol.26, No.6, pp. 539-547, 1992. 

4. “The Flow of a Second-Order Fluid between a Solid Rotating Circular Cylinder surrounded by a Co-axial Cylindrical Porous Medium” (Jointly with B. Barman), published in Proceedings of 38th Congress of ISTAM, IIT Kharagpur, pp. 9-12, 1993. 

5.  “Baro Diffusion and Thermal Diffusion in a Binary Mixture” (Jointly with N. A. Shah), published in Journal of Mathematical and Physical Sciences, Vol. 30, No. 4, pp.169-179, 1996.   

6. The Effect of Curvature of a Curved Annulus on Separation of a Binary Mixture” (Jointly with Rupam K. Gogoi) published in the Proceeding of the 46th Annual Technical Session, Assam Science Society, Guwahati, Assam, Vol. 2, pp. 81-89, 2000. 

7. “Flow of a viscous Fluid due to a rotating Disk in presence of an infinite saturated Porous Medium at a small Distance from the Disk”, published in Mathematical Forum, Vol. XIV, pp. 39-52, 2001-2002. 

8. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture near a Stagnation Point - A Numerical Study”, (Jointly with G. C. Hazarika), published in The Nepali Math. Sc. Report, Vol.  20, No. 1& 2, pp. 65-73, 2002. 

9.  “The Effects of Pressure Gradient and Temperature Gradient on Separation of Incompressible Viscous Fluids filling the Space outside a Uniformly Rotating Cylinder”, (Jointly with N.A. Shah), published in the Proceeding of the 47th Annual Technical Session, Assam Science Society, Guwahati, Assam, Vol. 3, pp. 72-81,2002. 

10. “The Effects of Pressure Gradient and Temperature Gradient on Separation of a Binary Mixture of Incompressible Viscous Fluids Confined between Two Disks”, published in Proceedings of 47th Congress of ISTAM, IIT Kharagpur, pp. 218-225, 2002. 

11. “Baro Diffusion and Thermal Diffusion in a Binary Mixture of Electrically Conducting Incompressible Fluids due to Rotation of a Circular Cylinder”, published in Bulletin of Pure and Applied Sciences, Vol. 22E, No. 1, pp. 79-87, 2003. 

12. “Soret Effect in Generalized MHD Couette Flow of a Binary Mixture” (Jointly with R. N. Singh), published in Bulletin of Calcutta Mathematical Society, Vol. 96, No. 5, pp. 383-390, 2004.

13. “Pressure Diffusion and Soret Effect in a Binary Fluid Mixture”, published in Bulletin of Pure and Applied Sciences, Vol. 23E, No. 1, pp. 165-173, 2004.

14.“Influence of Magnetic Field on Separation of a Binary Fluid Mixture in Free Convection Flow Considering Soret Effect”, (Jointly with G. C. Hazarika and R. N. Singh) published in Journal of National Academy of Mathematics”, Vol. 20, pp.1-20, 2006. 

15. Soret Effect due to Natural Convection between heated Vertical Plates in a Horizontal Magnetic Field”, (Jointly with R. N. Singh) published in Ultra Science, Vol. (1)M, pp. 97-106, 2007. 

16. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture Confined between Two Parallel Disks in presence of a Small Magnetic Field”, (Jointly with R. N. Singh) published in Latin American Applied Research, Vol. 38, No. 4, pp. 313-320, 2008.

17. “Thermal Diffusion of a Binary Fluid Mixture Confined between two Concentric Circular Cylinders in presence of a Radial Magnetic Field”,(Jointly with R. N. Singh), published in Journal of Energy, Heat and Mass Transfer, Vol.31, pp.27-38, 2009.

18. “Baro Diffusion and Thermal Diffusion in a Binary Fluid Mixture Confined in an inclined Channel in presence of a Weak Magnetic Field”, (Jointly with R. N. Singh), published in Proceedings of National Academic of Sciences, India, sec A, Vol.79, Pt. III, pp. 273-278, 2009.

19. “Separation of Species of a  Binary Fluid Mixture Confined between two Concentric rotating Circular Cylinders in presence of a strong radial Magnetic Field”, (Jointly with  R. N. Singh), published in Heat and Mass Transfer, Vol.79, Pt. III, pp. 273-278, 2010.

20. “Skin Friction and Mass Transfer in Porous Medium using Brinkman-Forchheimer Model”, (Jointly with R. N. Singh), published in Mathematical Forum, Vol.79, pp. 73-78, 2010.

21. “Thermal Diffusion in a Binary Fluid Mixture flow due to a Rotating Disc of Uniform High Suction in Presence of a Weak Axial Magnetic Field”, (Jointly with  R. N. Singh), published in Theoret. Appl. Mech., Vol. 37, No.3, pp. 161-187, Belgrade, 2010.

22. “Effect of a strong Transverse Magnetic Field on Separation of species of a Binary Fluid Mixture in Generalised Couette Flow”, (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in International Journal of Applied Engineering Research , Vol. 6, No.19, pp. 2223-2235,  2011.

23. “MHD boundary layer flow over a porous surface using homotopy perturbation method” (Jointly with R. N. Singh), published in Ultra Scientist, Vol. 23(3)A, pp.747-754, 2011

24. “Separation of Species of a Binary Fluid Mixture Confined in a Channel  In Presence of a Strong Transverse Magnetic Field”, (Jointly  with  R. N. Singh, Rupam Kr. Gogoi and Kabita Nath), published in Hem. Ind., Vol. 66, No.2, pp.171-180, 2012.

25. “Effect of axial magnetic field on demixing of a binary fluid mixture due to the rotation of a heated sphere” (Jointly with Kabita Nath), International Journal of Computer Applications (ISSN: 0975-08887), Vol. 53, No.10, pp. 47-52, Sept. 2012.

26. “The effect of magnetic field on separation of binary mixture of viscous fluids by baro diffusion and thermal diffusion near a stagnation point-a numerical study” (Jointly with   Kabita Nath), published in International Journal of Mathematical Archive (ISSN: 2229-5046), Vol. 3, No.3, pp.1118-1124, 2012. 

27. “Soret and Dufour effects on separation of a binary fluid mixture in MHD natural convection flow in porous media” published in Mathematical Forum (ISSN: 0972-9852) Vol. XXIV, pp. 17-27, 2011-2012.

28. “Soret and dufour effects on separation of a binary fluid mixture in MHD Mixed convection flow in porous media” published in J. Nat. Acad. Math., Vol. 26, pp. 111-119, 2012.

29. “Effects of heat generation, thermal diffusion, magnetic field and chemical reaction on demixing of a binary fluid mixture” (Jointly with Kabita Nath), published in Journal of Applied Mathematics and Fluid Mechanics (ISSN: 0974-3170), Vol. 5, No.1, pp. 23-31, 2013.

30. “Soret effect due to natural convection between heated vertical plates with heat generation in a horizontal small magnetic field”, (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in International Journal of Computer Applications (ISSN: 0975-08887), Vol. 73, No.11, pp.1-8, 2013.

31.  “Separation of a binary fluid mixture due to Soret effect in unsteady MHD convection flow in porous medium” (Jointly with Kabita Nath), published in International Journal of Mathematics and Computer Applications Research (IJMCAR) (ISSN: 2249-6955), Vol. 3, No.4, pp. 23-31, 2013.

32. “Effects of magnetic Field and Variation of Viscosity and Thermal Conductivity on Separation of a Binary Fluid Mixture over a continuously Moving Surface” (Jointly with Kabita Nath), published in International Journal of Innovative Research in Science, Engineering and Technology IJIRSET) (ISSN: 2319-8753), Vol. 2, No.11, pp. 6516-6524,   2013.

33. “Influence of Chemical Reaction and Magnetic Field on Heat and Mass Transfer by Natural Convection from Vertical Stationary Flat Plate in Porous Media considering Soret and Dufour Effects”  (Jointly  with  Kabita Nath and Animesh Aich), published in  Global Research Analysis (ISSN: 2277-8160),Vol. 2, No.11, pp. 160-162,  2013.

34. “Effect of Radial Magnetic Field and Temperature Gradient on Separation of Components of a Binary Fluid Mixture Confined in an Annular Region”(Jointly with  Ram Niroj Singh and Rupam Kr. Gogoi), published in International Journal of Computer  Applications (ISSN: 0975-08887), Vol. 83, No. 5, pp. 30-35, 2013.

35. “Effects of magnetic field and temperature gradient on separation of a binary fluid mixture in unsteady Couette flow” (Jointly with  Ram Niroj Singh and Rupam Kr. Gogoi), published in  International Journal of Mathematical Archive  (ISSN: 2229-5046), Vol. 4, No.12, pp. 56-61, 2013.

36. “The effect of inclination of channel on separation of an incompressible thermally and electrically conducting viscous binary fluid mixture in  presence  of strong magnetic field” (Jointly with  R. N. Singh and Rupam Kr. Gogoi), published in American journal of Applied Mathematics, Vol. 2, No. 1, pp. 1-7, 2014.

37. “Influence of Chemical Reaction, Heat Source, Soret and Dufour Effects on Separation of a Fluid Mixture in MHD Natural Convection Flow in Porous Media” (Jointly with  Kabita Nath and Debozani Borgohain), published in   International Journal of Computer  Applications (0975-08887), Vol. 90, No. 2,  pp. 12-19, 2014

38. “Influence of the Order of Chemical Reaction and Soret Effect on Mass Transfer of a Binary Fluid Mixture in Porous Media” (Jointly with Debozani Borgohain), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No.7, pp. 14867-74, July 2014.

 39. “Flow, Heat and Mass Transfer due to Indirect Natural Convection” (Jointly with Hemanta Konwar), published in International Journal of Mathematics and Computer Applications Research (IJMCAR) (ISSN 2249-6955), Vol. 4, No.4, pp. 111-118, Aug 2014.

40. “Effect of Chemical Reaction on Mass Distribution of a Binary Fluid Mixture in Unsteady MHD Couette Flow” (Jointly with Hemanta Konwar), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No.8, pp.15545-52, August 2014.

41. “MHD Flow, Heat and Mass Transfer about a Horizontal Cylinder in Porous Medium

(Jointly with Hemanta Konwar), published in International Journal of Innovative Research in Science, Engineering and Technology, Vol. 3, No. 10, pp. 16459-69, October 2014.

42. “Effects of Heat Source, Chemical Reaction, Thermal Diffusion and Magnetic Field on Demixing of a Binary Fluid Mixture Flowing over a Stretched Surface” (Jointly  with   Kabita Nath),  published in Latin American Applied Research, Vol. 44, No. 4, pp. 339-43, 2014.

43. “ Influence of Variable permeability on Heat and Mass transfer due to free convection flow over a vertical flat plate in porous medium considering soret and dufour effects” (Jointly with Animesh Aich), published in International Journal of Sciences: Basic and Apllied Research  (IJSBAR)  (ISSN 2307-4531), Vol. 18, No.1, pp. 271-285,   2014.

44. “MHD Flow, Heat and Mass Transfer due to Axially Moving Cylinder in Presence of Thermal Diffusion, Radiation and Chemical Reactions in a Binary Fluid Mixture” (Jointly with Hemanta Konwar), published in International Journal of Computer Applications, Vol. 110, No. 15, pp. 52-59, 2015.

45. “Influence of Chemical Reaction, Heat source, Soret and Dufour Effects on Heat and Mass Transfer in Boundary Layer Flow over a Streching Cylinder Embedded in a Porous Medium using Brinkman-Forchheimer Extended Darcy Model” (Jointly with Animesh Aich), published in International Journal of Innovative  Research in Science, Engineering and Technology (IJIRSET)  (ISSN 2319-8753), Vol. 4, No.1, pp. 18635-44,   2015.

46. “Influence of Chemical Reaction, Magnetic Field and radiation on Heat and Mass Transfer by Free Convection Flow near the Lower Stagnation Point of an Isothermal Horizontal circular Cylinder in a Porous Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 116, No. 3, pp. 5-11, 2015.

47.  Influence of Chemical Reaction, Magnetic Field, Heat Source on Heat and mass Transfer by Free Convection Flow over a Stretching Cone Embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich),published in The International Journal Of Science & Tchnoledge (ISSN 321 –19X), Vol. 3, No.4, pp.226-235, April 2015.

48. “Effects of Heat Source, Chemical Reaction, Thermal Diffusion and Magnetic Field on Demixing of a Binary Fluid Mixture Flowing over a Stretched Surface” (Jointly  with   Kabita Nath),  published in Latin American Applied Research, Vol. 44, No. 4, pp. 339-43, 2014.  

49. “Influence of Chemical Reaction, Magnetic Field and radiation on Heat and Mass Transfer by Free Convection Flow near the Lower Stagnation Point of an Isothermal Horizontal circular Cylinder in a Porous Medium Considering Soret and Dufour Effects” (Jointly with  Animesh Aich), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 116, No. 3, pp.5-11, 2015.

50. “Influence of Chemical Reaction, Magnetic Field, Heat Source on Heat and mass Transfer by Free Convection Flow over a Stretching Cone Embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with Animesh Aich), published in The International Journal Of Science & Tchnology (ISSN 2321 –919X), Vol. 3, No. 4, pp. 226-235, April , 2015.

51. “Effect of Chemical Reaction on Mass Transfer due to a Permeable Rotating Disk” (Jointly with Hemant Konwar), published in International Journal of Computer Applications (ISSN 0975-8887), Vol. 119, No. 21, pp.2 26-35, 2015. 

52. “Flow Heat and Mass transfer about a Permeable Vertical Rotating Cone” (Jointly with   Hemant Konwar), published in International Journal of Fluid Engineering (ISSN 0974-3138), Vol. 7, No. 1, pp. 25-40, 2015.

53. “Influence of Chemical Reaction and Heat Generation on Heat and Mass Transfer due to a Rotating Heated Sphere” (Jointly with Hemant Konwar), published in Journal of Applied Mathematics and Fluid Mechanics   (ISSN 0974-3170), Vol.7, No. 1, pp. 39-49, 2015.

54.  Influence of Chemical Reaction, Magnetic Field and  Radiation on Heat and Mass transfer over a rotating disk embedded in a Porous  Medium Considering Soret and Dufour Effects” (Jointly with Animesh Aich),published in International Journal Of Scientific Research and education (ISSN 2321 –7545), Vol. 3, No. 7, pp. 4035-45, 2015.

55. “Soret and Dofour effects of Chemically Reacting MHD Mixed Convection Flow from a Rotating Vertical Cone in a Porous Medium” (Jointly with Debozoni Borgohain), published in International Journal Of Scientific Research and Development (ISSN 2321 –0613), Vol .3, No. 4, pp. 1713-20, 2015.

56. “Effects of Chemical Reaction, Soret and Dofour Number  on Unsteady MHD  Mixe3d Convection Flow in the Forward Stagnation Region of a Rotating Sphere in a Porous medium” (Jointly with Debozoni Borgohain), published in International Journal of Scientific & Engineering Research (ISSN 2229-5518),Vol. 16, No. 9, pp.1878-87, 2015.

57. “Effects of variable viscosity and thermal conductivity in indirect natural convection” (Jointly with Bismeeta Buragohain), published in International Research Journal of Engineering and Technology (ISSN: 2395-0056), Vol.2, No.06, pp. 35-39, 2015.

58. “Influence of chemical reaction and thermal radiation effects on MHD boundary layer flow over a moving vertical porous plate”, (Jointly with Nabajyoti Dutta), published in International Research Journal of Engineering and Technology (ISSN: 2395-0056), Vol.2, No.07, pp. 180-187, 2015.

59. “Chemical Reaction and Thermal Radiation Effects on Unsteady MHD Flow over an Infinite Vertical Oscillating Porous Plate with Heat Source”, (Jointly with Nabajyoti Dutta), published in International Journal for Research in Applied Science Engineering Technology (IJRASET) (ISSN: 2321-9653), Vol.3, Issue XI, pp. 423-431, November 2015.

60. “Soret and Dufour effects on steady MHD flow in presence of heat source through a porous medium over a non-isothermal stretching sheet” (Jointly with Animesh Aich), published in  IQSR Journal of Mathematics (ISSN 2319-765X), Vol. 12,Issue 1, Ver.1, pp. 53-60, Jan-Feb . 2016.

61. “ MHD flow, heat and mass transfer about a permeable rotating vertical cone in presence of Radiation, Chemical reaction and heat generation or absorption effects” (Jointly with Hemant Konwar), published in Latin American Applied Research    (ISSN  Vol.46, No. 4, pp. 109-114, 2016. 

62.  “ Chemical reaction and soret effects on unsteady MHD flow through porous medium with thermal radiation” (Jointly with Nabajyoti Dutta), published in International Journal of Advanced  Research and Review (ISSN: 2055-7277), Vol.1, Issue 7, pp. 41-50,  2016.

63. “ Chemical reaction and thermal radiation effects on unsteady MHD flow of an incompressible viscous fluid past a moving vertical cylinder” (Jointly with Nabajyoti Dutta), published in International Journal of Engineering Sciences and Research  Technology IJESRT (ISSN: 2277-9655), Vol.5, No. 8, pp. 536-544,   2016.

64. “ Soret and Dufour effects on unsteady free convective flow along a vertical surface adjacent to a porous medium” (Jointly with Bismeeta Borgohain), published in Global Journal for Research Analysis ,Vol. 5, Issue. 1, (ISSN: 2277-8160), pp.30-32, 2016.

65. “ Soret and Dufour effects on unsteady MHD flow past an oscillating vertical plate” (Jointly with Bismeeta Borgohain), published in International Journal for Innovative  Research in Science and technology,Vol. 2, Issue. 8, (ISSN: 2349-6010), pp. 101-105, 2016.

66. “Effects of Soret, Dufour, variable viscosity and variable thermal conductivity on unsteady free convective flow past a vertical cone”  (Jointly with Bismeeta Borgohain), published in American Journal of Heat vand Mass ,Vol. 4, No. 1, pp.53-63, 2017.

67. “Effects of variable viscosity and thermal conductivity on a mixed convective radiative MHD slip flow and heat transfer of a micropolar fluid over a vertical porous plate in the presence of heat source”  (Jointly with Surajit Dutta and G. C. Hazarika), published in  International Journal of Research and Analytical Reviews,Vol. 6, Issue 1, pp.649-664, 2019.

68.  “Influence of Soret and Dufour effects on unsteady flow past a moving horizontal cylinder” (Jointly with Bismeeta Borgohain), published in International Journal for Research in Engineering Application & Management (IJREAM),Vol. 04, Issue. 11, (ISSN: 2454-9150), pp. 108-111, 2019.

69.  “Unsteady free convective flow past a vertical cone in the presence of chemical reaction and thermal radiation effects” (Jointly with Nabajyoti Dutta), published in International Journal of Applied Engineering Research (ISSN: 0973-4562), Vol.14, No. 5, pp. 1084-1090,   2019.

70.  Effects of variable viscosity and thermal conductivity on micropolar fluid flow due to a stretching cylinder4 in presence of magnetic field.” (Jointly with Surajit Dutta and Gopal Chandra Hazarika), published in International Journal of Mathematical, Engineering and Management Sciences (ISSN: 0973-4562), Vol.4, No. 3, pp. 745-760,   2019. (https://dx.doi.org/10.33889/IJMEMS.2019.4.3-058