Prof. T.V.S. Sekhar Professor
School of Basic Sciences

Research Interests

Numerical Methods to PDE; Computational Fluid Dynamics

Contact Details

  • SBS - 326
  • +91 674 713 5162
  • sekhartvs@iitbbs.ac.in, sekhartvs@yahoo.co.in

Other Profile Link(s)

Education

 Degree Discipline Year School
  Ph.D. Mathematics 1995 IIT Madras
 

Biosketch

 

Teaching

B.Tech : Mathematics - 1(1st semester), Mathematics - 2 (2nd semester), Transform calculus (3rd semester), Partial differential equations(4th semester Mechanical Engineering) 
M.Tech : Mathematical methods ( 1st semester)
M.Sc : Numerical Analysis (2nd semester), Numerical Analysis Lab (2nd semester), Numerical solutions of ordinary and Partial differential equations (3rd semester), Partial Differential Equations (4th semester), Continuum Mechanics (2nd Semester)

Projects

Title: Taylor column phenomena of axially translating sphere in a rotating fluid – a numerical study
Funding Agency: DST
Amount: 25,88,000/- INR
Duration: Jan 2020 to Jan 2023
Status: Completed
 
Title: Development of Higher Order Compact Scheme to capture Taylor column phenomena in rotating fluids
Funding Agency: DST
Amount: 21,26,000/- INR
Duration: Nov 2015 to Nov 2018
Status: Completed
 
Title: Development of Higher Order Compact Scheme to capture Taylor column phenomena in rotating fluids
Funding Agency: DST
Duration: Oct 2014 to Oct 2015
Status: Completed
 
Title: Validity of Quasi-static Approximation in Magneto hydrodynamic Flows and Heat Transfer – A Numerical Study.
Funding Agency: CSIR
Amount: 9,52,000/- INR
Duration: Nov 2012 to Nov 2015
Status: Completed
 
Title: Development of Higher Order Compact Difference Schemes for Fluid Dynamical Systems and Magnetohydrodynamics.
Funding Agency: SEED Project
Amount: 10,00,000/- INR
Duration: Aug 2012 to Jan 2015
Status: Completed

Recent Publications (International Journals)

1P. Garg, and T.V.S. Sekhar. "Hybrid GFD-RBF Method for Convection-Diffusion Problems" arXiv preprint arXiv:2412.08365, 2024.
2Madhumita Sahoo, Bapuji Sahoo, and T.V.S. Sekhar. "Natural Convection Heat Transfer Around a Sphere in a Rotating Fluid." International Conference on Computational Heat and Mass Transfer, 81-90, 2023.
3N.B. Barik, and T.V.S. Sekhar. "Multilevel meshfree RBF-FD method for elliptic partial differential equations." Engineering Mathematics and Computing, 1-10, 2022.
4Bapuji Sahoo, Subharthi Sarkar, R. Sivakumar, and T.V.S. Sekhar. "The effect of rotating fluid with Taylor column on forced convective heat transfer." International Communications in Heat and Mass Transfer 137, 106222, 2022.
5Bapuji Sahoo, Bikash Mahato, and T.V.S. Sekhar."A higher-order numerical analysis to study the flow physics and to optimize the design of a short-dwell blade coaters for higher efficiency." Journal of Physics: Conference Series 2090 (1), 012053, 2021.
6Bapuji Sahoo, Subharthi Sarkar, R. Sivakumar, and T. V. S. Sekhar. "On the numerical capture of Taylor column phenomena in rotating viscous fluid." European Journal of Mechanics-B/Fluids 89: 126-138, 2021.
7Subharthi Sarkar, Bapuji Sahoo, and T.V.S. Sekhar. "Influence of magnetic field in the control of Taylor column phenomenon in the translation of a sphere in a rotating fluid." Physics of Fluids, 33(7), 2021.
8N.B. Barik, and T.V.S. Sekhar. "A modified multilevel meshfree algorithm for steady convection‐diffusion problems." International Journal for Numerical Methods in Fluids, 93(7), pp.2121-2135, 2021.
9P. Padhi, S. Udhayakumar, T.V.S. Sekhar, and R. Sivakumar. "Thermo-magneto-convection and mechanism of multiple eddy formation due to applied magnetic field in a lid-driven cavity." Engineering Research Express, 3(1), 015013, 2021.
10N.B. Barik, and T.V.S. Sekhar. "Mesh-free multilevel iterative algorithm for Navier–Stokes equations." Numerical Heat Transfer, Part B: Fundamentals, 79(3), 150-164, 2020.
11S Ghosh, S Sarkar, R Sivakumar, T V S Sekhar "Forced convection magnetohydrodynamic flow past a circular cylinder by considering the penetration of magnetic field inside it" Numerical Heat Transfer, Part A: Applications, 76, 32-49, 2019.
12S Sarkar, S Ghosh, R Sivakumar, T V S Sekhar "On the quasi-static approximation in the finite magnetic Reynolds number magnetohydrodynamic flow past a circular cylinder" European Journal of Mechanics-B/Fluids 77, 259-272, 2019.
13S Ghosh, S Sarkar, R Sivakumar, T V S Sekhar "Full magnetohydrodynamic flow past a circular cylinder considering the penetration of magnetic field" Physics of Fluids 30 (8), 087102, 2018.
14Nikunja Bihari Barik and T. V. S. Sekhar "An efficient local RBF meshless scheme for steady convection-diffusion problems" Int. J. Computational Methods, Vol. 14 (2017) 1750064 (17 pages).
15S. Udhayakumar, A. D. AbinRejeesh, T. V. S. Sekhar and R. Sivakumar "Study of directional control of heat transfer and flow control in the magnetohydrodynamic flow in cylindrical geometry" Int. J. Heat and Fluid Flow, Vol. 61 (2016) 482-498.
16S. Vimala, S. Damodaran, R. Sivakumar, T.V.S. Sekhar "The role of magnetic Reynolds number in MHD forced convection heat transfer." Applied Mathematical Modelling, Vol. 40, (2016) 6737-6753.
17S. Udhayakumar, A. D. B. Rejeesh, T. V. S. Sekhar and R. Sivakumar. "Numerical investigation of magnetohydrodynamic mixed convection over an isothermal circular cylinder in presence of an aligned magnetic field". Int. J. Heat and Mass Transfer, 95 (2016) 379-292.
18 R. Sivakumar, S. Vimala, S. Damodaran and T. V. S. Sekhar . "Study of Heat Transfer Control with Magnetic Field Using Higher Order Finite Difference Scheme". Advances in Applied Mathematics and Mechanics, 8 (2016) 449-463.
19T. V. S. Sekhar, B. Hema Sundar Raju and P.V.S.N. Murthy . "Higher order compact scheme for laminar natural convective heat transfer from a sphere". Applied Mathematical Modeling, 40 (2016) 2039-2055.
20S. Udhayakumar, T. V. S. Sekhar, R. Sivakumar. "Numerical Experiments on the study of Mixed convection flow in cylindrical geometry."Numerical Heat Transfer Part A , 68 (2015) 870-886.
21R. Sivakumar, S. Vimala, and T. V. S. Sekhar. "Influence of Induced magnetic field on thermal MHD flow."Numerical Heat Transfer Part A, 68 (2015) 797-811.
22T. V. S. Sekhar and B. Hema Sundar Raju. "Spherical Geometry HOC Scheme to Capture Low Pressures within a Wake." East Asian Journal on Applied Mathematics, 3 (2013) 93-106.
23T. V. S. Sekhar and B. Hema Sundar Raju. "An efficient Higher order compact scheme to capture heat transfer solutions in spherical geometry."Computer Physics Communications, 183 (2012) 2337-2345.
24B. Hema Sundar Raju and T. V. S. Sekhar. "Higher order compact scheme combined with multigrid method for momentum, pressure Poisson and energy equations in cylindrical geometry."The Open Numerical Methods Journal, 4 (2012) 46-58.
25T. V. S. Sekhar, R. Sivakumar, S. Vimala and Y. V. S. S. Sanyasiraju. "A combined fourth order compact scheme with accelerated multigrid method for energy equation in spherical polar coordinates."Electronic Transactions on Numerical Analysis, 39 (2012) 32-45.
26T. V. S. Sekhar, R. Sivakumar, T. V. R. Ravi Kumar and S. Vimala. "Numerical simulations of highly non-linear coupled full MHD equations in spherical geometry".Int. J. Non-Linear Mechanics, 47 (2012) 599-615.
27T. V. S. Sekhar and B. Hema Sundar Raju and Y. V. S. S. Sanyasiraju. "Higher order compact scheme for incompressible Navier-Stokes equations in spherical geometry."Commun. Comp. Phys. 11(2012) 99-113.
28T. V. S. Sekhar, R. Sivakumar, K. Subbarayudu and Y. V. S. S. Sanyasiraju. "Non-monotonic behavior of forced convective heat transfer under the influence of external magnetic field."Numerical Heat Transfer Part A, 59 (2011) 459 – 486.
29T. V. S. Sekhar, R. Sivakumar and T. V. R. Ravi Kumar. "Effect of magnetic Reynolds number on 2-D hydromagnetic flow around a cylinder."Int. J. Num. Meth. in Fluids, 59 (2009) 1351-1368.
30T. V. S. Sekhar, R. Sivakumar, T. V. R. Ravi Kumar and K. Subbarayudu. "High Reynolds number incompressible MHD flow under low Rm approximation."Int. J. Non-Linear Mechanics, 43 (2008), 231-240.

Conferences (International)

1Presented a paper at the 26th Congress of Theoretical and Applied Mechanics (ICTAM 2024) held at Daegu, South Korea, in August 2024.
2Presented a paper at the 14th International Conference on Computational Heat and Mass Transfer (ICCHMT 2023) held at Dusseldorf, Germany, in September 2023.
3Presented a paper at the International Conference on Recent Advances in Applied Mathematics (RAAM 2023) held at BITS Pilani, Dubai, in June 2023.
4Presented a paper at the 19th International Conference on Computational and Mathematical Methods in Science and Engineering (CMMSE 2019) held at Rota, Cadiz, Spain, in July 2019.
5Presented a paper at the International Conference on Computational Mathematical Methods in Engineering and Technology (iCOMET2017) held at the Royal Melbourne Institute of Technology University (RMIITU), Melbourne, Australia, in December 2017.
6Presented a paper at the IMA conference on Numerical Methods for Simulation held at the Mathematical Institute, University of Oxford, UK, in September 2015.
7Delivered a talk on "Higher Order Compact Scheme to capture low pressures within a wake and heat transfer solutions in spherical geometry" at the Indo-German Conference held at TU Darmstadt, Germany, in September 2012.
 

Academic Honors & Awards

  • Teaching Excellent Award from IIT Bhubaneswar in February 2016
  • Qualified GATE-1990, Awarded SRF of CSIR, Awarded RA of CSIR (All over India level selections)
 

Research Scholar

PhD Guidance: Completed=5 (3 from IIT, Ongoing = 2
 
List of PhD scholars in IIT Bhubaneswar :
 
 
Ongoing:
1. Madhumita Sahoo
2. Priyal Garg
3. Ankit Dhara
 
 
Awarded from IIT BBS
1. Nikunja Bihari Barik 
2. Samit Ghosh
3. Bapujii Sahoo
 
List of Post Doctoral scholars guided
 
1. Dr. Subharthi Sarkar
2. Dr. Bikash Mahato
3. Dr. Bapuji Sahoo
 

Professional Experience

Presented a paper at the 26th Congress of Theoretical and Applied Mechanics (ICTAM 2024) held at Daegu, South Korea, in August 2024.   Presented a paper at the 14th International Conference on Computational Heat and Mass Transfer (ICCHMT 2023) held at Dusseldorf, Germany, in September 2023. Presented a paper at the International Conference on Recent Advances in Applied Mathematics (RAAM 2023) held at BITS Pilani, Dubai, in June 2023. Presented a paper at the 19th International Conference on Computational and Mathematical Methods in Science and Engineering (CMMSE 2019) held at Rota, Cadiz, Spain, in July 2019. Presented a paper at the International Conference on Computational Mathematical Methods in Engineering and Technology (iCOMET2017) held at the Royal Melbourne Institute of Technology University (RMIITU), Melbourne, Australia, in December 2017. Presented a paper at the IMA conference on Numerical Methods for Simulation held at the Mathematical Institute, University of Oxford, UK, in September 2015. Visiting Scholar at the University of Massachusetts Dartmouth (U MAss D), USA, from June 2013 to August 2013. Delivered a talk on "Higher Order Compact Scheme to capture low pressures within a wake and heat transfer solutions in spherical geometry" at the Indo-German Conference held at TU Darmstadt, Germany, in September 2012. 

Professional Experience

20 years+
 
 

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