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Name : Dr. Amit Mahajan
Designation : Assistant Professor, Mathematics
Department : Department of Applied Sciences
Qualification : Ph.D.
Phone : +91 11-33861254 (O)
Email ID : amitmahajan@nitdelhi.ac.in

Position Held

Assistant Professor (24 November 2014 – Present)

National Institute of Technology (NIT) Delhi, India

Assistant Professor (22 August 2012 – 21 November 2014)

National Institute of Technology (NIT) Hamirpur, India

Assistant Professor (08 October 2010 – 21 August 2012)

Central University of Himachal Pradesh, Dharamshala, India

Post-Doctoral Research Fellow, University of Windsor, Canada

Qualification-fdjk

Ph.D. Mathematics, National Institute of Technology Hamirpur, Himachal Pradesh, INDIA Ph.D.(October 2009)

Thesis Title :“Nonlinear Stability Analysis of Ferrofluids”

M.Phil. Mathematics, Maharishi Dayanand University Rohtak, Haryana, INDIA, 1st Division, May 2005

Project title: "On pulsatile flow of a viscous liquid"

M.Sc. Mathematics, Himachal Pradesh University, Shimla, Himachal Pradesh, INDIA, 1st Division, May 2004

Bachelor of Sciences, Himachal Pradesh University, Shimla, Himachal Pradesh, INDIA, 1st Division,2002

Awards & Honors

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Research

Areas of Research Interest:

Hydrodynamic Stability, Ferrohydrodynamics, Nanofluids, Non-Newtonian Fluids, Fluid Instabilities & Flow through Porous Media. Most of the work is concentrated to thermal convection problems on magnetic fluids (water based and ester based). Porous medium studies on models based on Darcy, Brinkman law are considered. Penetrative convection in layer based on different models is explored. Variety of possible variations including thermal non-equlibrium, anisotropy, rotation, salt, gravity are made.

There is a lot of open scope in near future to be explored. 

 

Research Guidance:

Dr. Reena Nandal, Ph.D. Degree Completed in August 2018 on topic “Penetrative Convection in a Fluid Saturating a Porous Medium”

Mr. Hemant Parashar, Ph.D. Thesis Submitted on topic "Penetrative Convection in a Ferrofluid Saturated Porous Layer", October 2021.

 

Research Projects (Completed) as Principal Investigator (PI)

“Stability and convection in magnetic nanofluids”, from Council of Scientific and Industrial Research (CSIR), New Delhi. Date of start of project: 01 June 2016, duration: 03 Years

 “Linear and nonlinear stability analysis of penetrative convection in ferrofluids” from Seed Grant Project, NIT Delhi.  Date of start of project: 17 January 2016, duration: 02 Years

 

Research/ Editorial/ Press Achievements:

Citations: Many of the international journal articles have been cited by different authors and research groups altogether in more than 550 international journal articles, book chapters, and conference articles.

Editorial activities: Actively participating for more than 10 years as a reviewer to international journals such as Proceedings of Royal Society A (Royal Society Publishing), Physics of Fluids (AIP), International Journal of Heat and Mass Transfer (Elsevier), International Communications in Heat and Mass Transfer (Elsevier), Applied Mathematics and Computation (Elsevier), Applied Mathematical Modeling (Elsevier), Ain Shams Engineering Journal (Elsevier), Transport in Porous Medium (Springer), Journal of Porous Media (Begell House), Journal of Nanofluids (American Scientific Publishers), Mathematics (MDPI) etc.

Administration

Current Assignments:

Controller of Examination from 04 October 2021 to Present

Chairman (CPC) from 04 October 2021 to Present

Chairman, Library Committee from 15 July 2021 to Present

 

Past Assignments:

Head, Department of Applied Sciences and Humanities and Management: 19 September 2017 to 31 December 2019

Dean Academic (I/C): 29 July 2016 to 19 September 2017

Controller of Examination: 17 December 2014 to 30 September 2018

Faculty Incharge Administration (for nonteaching recruitment): 01 January 2020 to 31 December 2020

Chairman Sports Club

Chairman Annual Report: 19 September 2017 to 15 July 2021

Nodal Officer for NAD (National Academic Depository): April 2017 to 30 September 2018

Chairman Hindi Cell

Publications

  1. Sunil, Amit Mahajan: “A nonlinear stability analysis for magnetized ferrofluid heated from below”,  “Proceedings of Royal Society A” (U.K.), 464 (2089), 83-98 (2008).
  2. Sunil, Amit Mahajan: “A nonlinear stability analysis for rotating magnetized ferrofluid heated from below”, “Applied Mathematics and Computation” (Netherlands), 204 (1), 299-310 (2008).  (Elsevier) 
  3. Sunil, Amit Mahajan: “A nonlinear stability analysis in a double-diffusive magnetized ferrofluid layer saturating a porous medium”, “Journal of Geophysics and Engineering” (U.K.), 5, 311-322 (2008).  (IOP Science)
  4. Sunil, P. Chand, P.K. Bharti, Amit Mahajan: “Thermal convection in micropolar ferrofluid in the presence of rotation”,  “Journal of Magnetism and Magnetic Materials” (Netherlands), 320 (3-4), 316-324 (2008).  (Elsevier)
  5. Sunil, Amit Mahajan: “A nonlinear stability analysis of a double-diffusive magnetized ferrofluid”,  “Zeitschrift fur Natureforschung A” (Germany), 63a(12), 797-807 (2008). (De Gruyter) 
  6. Sunil, Amit Mahajan: “Thermoconvective magnetized ferrofluid with internal angular momentum saturating a porous medium: A nonlinear stability analysis”, “Applied Mathematics and Computation” (Netherlands), 205(1), 403-416 (2008). (Elsevier)
  7. Sunil, P. Sharma, Amit Mahajan: “A nonlinear stability analysis for thermoconvective magnetized ferrofluid with magnetic field dependent viscosity”, “International Communications in Heat and Mass Transfer” (Netherlands), 35, 1281-1287 (2008).  (Elsevier) 
  8. Sunil, P. Chand, Amit Mahajan: “Effect of rotation on double-diffusive convection in a magnetized ferrofluid with internal angular momentum saturating a porous medium”, “International Journal of Applied Mechanics and Engineering” (Poland), 13(4), 1059-1078 (2008). (De Gruyter)
  9. Sunil, Amit Mahajan: “A nonlinear stability analysis for thermoconvective magnetized ferrofluid saturating a porous medium”, “Transport in Porous Media” (Netherlands), 76(3), 327-343 (2009).  (Springer)
  10. Sunil, Amit Mahajan:  “A nonlinear stability analysis for rotating magnetized ferrofluid heated from below saturating a porous medium”, “ZAMP” (Netherlands), 60, 344-362 (2009). (Springer)
  11. Sunil, P. Sharma, Amit Mahajan:  “A nonlinear stability analysis of a rotating double-diffusive magnetized ferrofluid saturating a porous medium”, “Heat Transfer Research” (U.S.A.), 40(4), 351-378 (2009).  (Begell House)
  12. Sunil, Amit Mahajan: “A nonlinear stability analysis in a double-diffusive magnetized ferrofluid with magnetic field dependent viscosity”, “Journal of Magnetism and Magnetic Materials” (Netherlands), 321(18), 2810-2820 (2009).  (Elsevier)
  13. Sunil, P. Sharma, Amit Mahajan: “A nonlinear stability analysis for thermoconvective magnetized ferrofluid with magnetic field dependent viscosity saturating a porous medium”, “Journal of Porous Media” (U.S.A.), 12(7), 667-682 (2009).  (Begell House)
  14. Sunil, Amit Mahajan: “A nonlinear stability analysis in a double-diffusive magnetized ferrofluid with magnetic field dependent viscosity saturating a porous medium”, “Canadian Journal of Physics” (Canada), 87(6), 659-673 (2009).  (NRC Press)
  15. Sunil, P. Chand, Amit Mahajan: “The Effect of Suspended Particles on Marginal Stability of Magnetized Ferrofluid with Internal Angular Momentum”, “Heat Transfer Research” (U.S.A.), 41(2), 167-186 (2010).  (Begell House)
  16. Sunil, P. Sharma, Amit Mahajan: “Nonlinear Ferroconvection in a Porous Layer Using a Thermal Non-Equilibrium Model”,  “Special Topics and Reviews in Porous Media” (U.S.A.), 1(2), 105-121 (2010). (Begell House)
  17. Sunil, P. Chand, Amit Mahajan: “Effect of Suspended Particles on Marginal Stability of a Double-Diffusive Magnetized Ferrofluid with Internal Angular Momentum”, “Chemical Engineering Communication” (U.S.A.), 197(12), 1553-1570 (2010).  (Taylor & Francis) 
  18. Sunil, P. Sharma, Amit Mahajan: “Onset of Darcy-Brinkman double-diffusive convection in a magnetized ferrofluid layer using a thermal non-equilibrium model: a nonlinear stability analysis”, “Journal of Geophysics and Engineering” (U.K.), 7(4), 417-430 (2010). (IOP Science)
  19. P.N. Kaloni, Amit Mahajan: “Stability and uniqueness of ferrofluids”, “International Journal of Engineering Science” (Netherlands), 48(11), 1350-1356 (2010).  (Elsevier) 
  20. Sunil, P. Chand, Amit Mahajan: “Marginal stability of dusty magnetized ferrofluid with internal angular momentum saturating a porous medium”, “Proceedings of the National Academy of Sciences” (INDIA), 80(3), 245-260 (2010).
  21. Sunil, P. Chand, Amit Mahajan, P. Sharma: “Effect of Rotation on Double-Diffusive Convection in a Magnetized Ferrofluid with Internal Angular Momentum”, “Journal of Applied Fluid Mechanics” (Netherlands), 4(4), 43-52 (2011).
  22. Sunil, Amit Mahajan: “Thermoconvective magnetized ferrofluid with internal angular momentum: A nonlinear stability analysis”, “International Journal of Applied Mechanics and Engineering”, 16(2), 557-580 (2011).  (De Gruyter)
  23. P.N. Kaloni, Amit Mahajan: “Stability of magnetic fluid motions in a saturated porous medium”, “Journal of Applied Mathematics and Physics” (Netherlands), 62, 529-538 (2011). (Springer) 
  24. Sunil, P. Sharma, Amit Mahajan: "Onset of Darcy-Brinkman Ferroconvection in a Rotating Porous Layer using a Thermal Non-Equilibrium Model: A Nonlinear Stability Analysis”, “Transport in Porous Media”, 88, 421-439 (2011). (Springer) 
  25. Sunil, R. Devi, Amit Mahajan: “Global stability for thermal convection in a couple stress fluid”, “International Communications in Heat and Mass Transfer”, 38, 938-942 (2011). (Elsevier)
  26. Sunil, P. Sharma, Amit Mahajan: ”A nonlinear stability analysis of a rotating double-diffusive magnetized ferrofluid”, “Applied Mathematics and Computation”(U.K.) 218(6), 2785-2799 (2011).  (Elsevier)   
  27. Amit Mahajan,  M.K. Sharma: “Brinkman flow in a couple stress fluid”, “Special Topics and Reviews in Porous Media”  (Netherlands), 3(3), 215-219 (2012). (Begell House)
  28. Sunil, S. Chaudhary, Amit Mahajan: “Global stability of a couple stress fluid in a porous medium”, “Indian Journal of Theoretical Physics” (India), 60(2), 145-159 (2012).
  29. Sunil, R. Devi, Amit Mahajan: “Global stability of a rotating couple stress fluid in a porous medium using a thermal non-equilibrium model”, “ Indian Journal of Theoretical Physics” (India) 60(3), 221-248 (2012).
  30. Amit Mahajan, M. Arora: “Convection in rotating magnetic nanofluid”, “Applied Mathematics and Computation” 219(11), 6284-6296 (2013).  (Elsevier)
  31. Amit Mahajan, M. Arora, Sunil: “Convection in magnetic nanofluid”, “Journal of Nanofluids” (USA) 2(2), 147-156 (2013). (American Scientific Publishers)
  32. Sunil, S. Choudhary, Amit Mahajan: “Conditional stability for thermal convection in a rotating couple-stress fluid saturating a porous medium with temperature and pressure dependent viscosity”, “Journal of Geophysics and Engineering” 10, 045013 (1-11) (2013).  (IOP Science) 
  33. Amit Mahajan, M.K. Sharma, “Convection in magnetic nanofluid in porous media”, “Journal of Porous Media” 17(5), 439-455 (2014).  (Begell House) 
  34. Sunil, S. Choudhary, Amit Mahajan: “Conditional stability for thermal convection in a rotating couple-stress fluid saturating a porous media with temperature and pressure dependent viscosity using a thermal non-equilibrium model”, “Journal of Non-Equilibrium Thermodynamics” 39(2), 61-78 (2014).  (De Gruyter)  
  35. Sunil, S. Choudhary, Amit Mahajan: “Conditional stability for thermal convection in a rotating couple-stress fluid saturating a porous medium”, “Special Topics and Reviews in Porous Media” 5(2), 119-132 (2014).  (Begell House)
  36. Amit Mahajan, M.K. Sharma, Sunil: “Convection in rotation magnetic nanofluids in porous media”, “Journal of Nanofluids”, 3(4), 350-360 (2014). (American Scientific Publishers)
  37. Amit Mahajan, Reena Nandal, “On the stability of penetrative convection in a couple-stress fluid”, “International Journal of Applied and Computational Mathematics” 3(4), 3745-3758 (2017).  (Springer)
  38. Reena Nandal, Amit Mahajan, “Linear and nonlinear stability analysis of a Horton-Rogers-Lapwood problem with an internal heat source and Brinkman effects”, “Transport in Porous Media” (Netherlands), 117(2), 261-280 (2017). (Springer)  
  39. Amit Mahajan, Mahesh Kumar Sharma, “Penetrative convection in magnetic nanofluids via internal heating”, “Physics of Fluids”, 29, 034101 (2017).  (AIP) 
  40. Amit Mahajan, Sunil, Mahesh Kumar Sharma: “Linear stability analysis of penetrative convection via internal heating in a ferrofluid saturated porous layer”, Fluids [Special Issue on “Convective instability in porous media”] (Basel, Switzerland), 2(2), 22 (2017).
  41. Amit Mahajan, Reena Nandal: “Anisotropic porous penetrative convection for a local thermal non-equilibrium model with Brinkman effects”, “International Journal of Heat and Mass Transfer”, 115(B), 235-250 (2017). (Elsevier)            
  42. Amit Mahajan, Mahesh Kumar Sharma: “The onset of penetrative convection stimulated by internal heating in a magnetic nanofluid saturating a rotating porous medium”, “Canadian Journal of Physics”, 96(8), 898-911 (2018). (NRC Press)
  43. Amit Mahajan, Mahesh Kumar Sharma: “Penetrative convection in an internally heated layer of magnetic nanofluid saturating a porous medium”, “Magnetohydrodynamics”, Institute of Physics, University of Latvia, 54(3), 225-244 (2018). 
  44. Amit Mahajan, Mahesh Kumar Sharma: “Convection in a magnetic nanofluid saturating a porous medium under the influence of a variable gravity field”, “Engineering Science and Technology, an International Journal”, 21, 439-450 (2018). (Elsevier) 
  45. Reena Nandal, Amit Mahajan: “Penetrative convection in couple-stress fluid via internal heat source/sink with the boundary effects”, “Journal of Non-Newtonian Fluid Dynamics”, 260, 133-141 (2018). 
  46. Amit Mahajan, Mahesh Kumar Sharma: “The onset of convection in a magnetic nano fluids layer with variable gravity effects”, “Applied Mathematics and Computation”, 339,622-635 (2018) 
  47. Amit Mahajan, Paras Ram, O.D. Makinde, “Penetrative Internally Heated Convection in Magnetic Fluids”, “Computational Analysis for Heat Transfer in Fluids and Solids of the journal DDF (Defect and Diffusion Forum)”, 387, 373-384 (2018).
  48. Sunil, Shalu Choudhary, Amit Mahajan: “Stability analysis of a couple-stress fluid saturating a porous medium with temperature and pressure dependent viscosity using a thermal non-equilibrium model”, “Applied Mathematics and Computation”,340, 15-30 (2019).  (Elsevier)
  49. Amit Mahajan, Mahesh Kumar Sharma: “Penetrative convection in a rotating internally heated magnetic nanofluid layer”, ”Journal of Nanofluids”, 8(1), 187-198 (2019).
  50. Amit Mahajan, Reena Nandal: “Stability of an anisotropic porous layer with internal heat source and Brinkman effects”, “Special Topics and Reviews in Porous Medium: An International Journal”, 10(1), 65-87 (2019).
  51. Reena Nandal, Amit Mahajan: “Linear and nonlinear stability analysis of a fluid saturated Brinkman porous media via internal heat source/sink with the effect of boundary heating/cooling”, “Journal of Porous Media”, 22(5), 545-562 (2019).  (Begell House)
  52. Amit Mahajan, Reena Nandal, “Penetrative convection in a fluid saturated Darcy-Brinkman porous media with LTNE via internal heat source”, “Nonlinear Engineering – Modeling and Application”, 8, 546-558 (2019). (De Gruyter)
  53. Amit Mahajan, Mahesh Kumar Sharma: “Double-diffusive convection in a magnetic nanofluid layer with cross diffusion effects”, “Journal of Engineering Mathematics”, 115, 67-87 (2019). (Springer)
  54. Amit Mahajan, Reena Nandal:Nonlinear stability analysis of a fluid saturated anisotropic Darcy-Brinkman medium with internal heat source”, “Applied Mathematics and Computation”, 358, 216-231 (2019). (Elsevier) 
  55. Amit Mahajan, Mahesh Kumar Sharma: “Thermomagnetic convection in a magnetic nanofluid saturated porous medium with magnetic field dependent viscosity“, “International Journal of Nanoparticles“, 11(03), 181-201 (2019). (Inderscience)
  56. Amit Mahajan, Mahesh Kumar Sharma: Penetrative convection due to the absorption of radiation in a magnetic nanofluid saturated porous layer, “Studia Geotechnica et Mechanica”, 41(03), 129-142 (2019).
  57. Amit Mahajan, Mahesh Kumar Sharma: Effects of local thermal non-equilibrium on the onset of convection in a magnetic nanofluid layer, Heat Transfer Research, 51(7), 689-705, 2020. (Begell House) 
  58. Amit Mahajan, Hemant Parashar, Linear and weakly nonlinear stability analysis on a rotating anisotropic ferrofluid layer, Physics of Fluids, 32, 024101, 2020. (AIP) 
  59. Amit Mahajan, Hemant Parashar, Linear and weakly nonlinear analysis of a ferrofluid layer in a LTNE model with variable gravity and an internal heat source, Journal of Engineering Mathematics, 124(1), 11-39, 2020. 
  60. Amit Mahajan, Vinit Kumar Tripathi, Effects of spatially varying gravity, temperature and concentration fields on the stability of a chemically reacting fluid layer, Journal of Engineering Mathematics, 125(1), 23-45, 2020. 
  61. Amit Mahajan, Hemant Parashar, Effect of rotation on a layer of ferrofluid for a local thermal nonequilibrium model with a heat source: weakly nonlinear analysis, “Special Topics and Reviews in Porous Medium: An International Journal”, 12(2), 25-49, 2021.
  62. Amit Mahajan, Vinit Kumar Tripathi, Effect of nonlinear temperature and concentration profiles on the stability of a layer of fluid with chemical reaction, Canadian Journal of Physics. 99(5), 367-377, 2021. (NRC Press) 
  63. Amit Mahajan, Vinit Kumar Tripathi, Unconditional nonlinear stability for double diffusive convection with temperature and pressure dependent viscosity, Heat Transfer (Asian Research) (Wiley). 50(2), 1523-1542, 2021.
  64. Amit Mahajan, Mahesh Kumar Sharma, Onset of convection in a magnetic nanofluid saturated porous medium under local thermal non-equilibrium conditions. Special Topics and Reviews in Porous Medium: An International Journal, Accepted (In Press) 2021.
  65. Amit Mahajan, Mahesh Kumar Sharma: The onset of magnetic nanofluid convection because of selective absorption of radiation, Journal of Mechanical Engineering and Sciences, 15(1), 7918-7935, 2021.
  66. Amit Mahajan, Vinit Kumar Tripathi, Stability of a chemically reacting double - diffusive fluid layer in a porous medium, Heat Transfer - Asian Research, Accepted (In Press) 2021.

Expert Talks

Talk on "Study of Stability of Fluids by Energy Method" at the 5-day Faculty Development Program "Recent Trends in Fluid Dynamics", organised by Department of Mathematics, Sapthagiri College of Engineering, Bangalore in 2020.

Talk on "Hydrodynamic Stability by Energy Method" at Two-Day National Seminar on "Analytical Aspects of Dynamics" Organised by Central University of Himachal Pradesh in 2019.

Talk on "Stability of Brinkman Flow of Magnetic Fluid" at International Conference on Fluid Dynamics and its Applications organised by BNM Institute of Technology Bangalore in 2011.

Professional Activities

Selection Committee Member

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Membership

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