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Dr. C. V. Anil Kumar

Area of Research

Area of Research
Presently working in the area of analysis and modeling of naturally occurring series from Ionospheric and Magnetospheric data. Investigated the chaotic dynamics of the time series of Total Electron Content (TEC), the geomagnetic horizontal Intensity (H) a

Department
Mathematics

Education

  • Ph.D. (CUSAT, Cochin)
  • M.Phil. (Univ. of Kerala)
  • M.Sc. (Univ. of Kerala)

Area of Interest

Research Interests:

  • Dynamics and Rheology of microparticle suspensions
  • Time series analysis

Recent Research Highlights:

  • Developed equations governing the migration of an arbitrarily forced spheroid in quiescent/ simple-shear/ uniform/ oscillating/ oscillating-shear flows at low Reynolds number.
  • Reported strong dependence of the size and shape of the attractor on the controlling parameters such as aspect ratio, Reynolds number, amplitude, and frequency of the external force and initial orientations or positions of the suspension.
  • The dependencies of oscillations on the parameters can be utilized for better separation of particles.
  • The results can validate complex software developed for suspension flow problems.
  • The conventional Q-curves for prolate spheroid show a greater variation concerning the particle parameters.
  • It is confirmed that the Basset memory force causes a phase shift in the oscillations, while the other two forces do not affect the phase.
  • The linear scaling of amplitude on particle aspect ratio observed for the spheroids may give insight into the physics, especially regarding the quantum of velocity disturbances due to particle size.

Publications

Five Recent Publications 

  • James T Kurian, T. R. Ramamohan, Kumar, CVA (2024), Dynamics of a driven spheroid in a slow oscillating creeping shear flow, Phy. Fluids, 36(8).
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  • Singh, J., Kumar, C.V.A(2023), Transport of a driven spheroid in a uniform flow at low Reynolds numbers. Acta. Mech. 234, 3649–3664, https://doi.org/10.1007/s00707-023-03577-4.
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  • Singh, J., Kumar, C.V.A. (2022),Periodically driven spheroid in a viscous fluid at low Reynolds numbers, AIP Advances 12(2), 025312 AIP Publishing, 10.1007/s00162-020-00547-7.
  • Jogender Singh and C. V. Anil Kumar (2020), "Oscillations of a periodically forced slightly eccentric spheroid in an unsteady viscous flow at low Reynolds numbers", Theoretical and Computational Fluid Dynamics, 1–15, Springer Nature. DOI: 10.1007/s00162-020-00547-7.
  • Jogender Singh and C. V. Anil Kumar(2019), "Dynamics of a periodically forced spheroid in a quiescent fluid in the limit of low Reynolds numbers" Rheol. Acta, (Springer) Vol.- 58(11-12): pages 709–18 (2019) Springer. DOI: 10.1007/s00397-019-01169-5. 

Book Chapters: 

  • Singh, J and Kumar C.V.A (2022), Dynamics of forced particles in an oscillating flow at low Reynolds numbers, In Application of Soft Computing Techniques in Mechanical Engineering, 117-131. CRC Press, edited by Amar Patnaik, Vikas Kukshal, Pankaj Agarwal, Ankush Sharma, Mahavir Choudhary, https://doi.org/10.1201/9781003257691-9

Peer-reviewed Conferences: 

  1. James T Kurian and C V Anilkumar presented a paper entitled Orientation transport properties of forced spheroids in oscillating shear flow in the International Conference on Advances in Mechanics, Modelling, Computing and Statistics (ICAMMCS-2022) organized (online) by Department of Mathematics, BITS Pilani - Pilani Campus during March 19-21, 2022.
  2. Jogender Singh and C V Anil Kumar, "Rheology of periodically forced prolate spheroid suspended in a Newtonian fluid at low Reynolds numbers" at the International Conference on Mathematical Modeling, Computational Intelligence Techniques and Renewable Energy (MMCITRE-2022) Organized by University of Technology, Sydney, Australia (oral presentation).
  3. Jogender Singh and C V Anil Kumar, "Dynamics of suspended spheroid in an oscillating Newtonian fluid under the action of external periodic force at low Reynolds numbers", International Conference on Energy Conversion and Thermo-fluid Systems (i-CONECTS-21), MNIT Jaipur India.
  4. Jogender Singh and C V Anil Kumar, "Dynamics of Periodically Forced Spheroids in Quiescent fluid at Low Reynolds Number" International Workshop and Conference on Topology and Applications (IWTCA-2018) at Rajagiri Institute of Engineering and Technology, Kochi India, 5th- 11th Dec 2018.
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