Assistant Professor

Dr. Somesh Vinayak Tewari

Department of Electrical and Electronics Engineering

Interests

  1. Pulse Power
  2. High Voltage
  3. Gas Breakdown

Education

2007

West Bengal University of Technology
India
Bachelors

2009

Vellore Institute of Technology
India
Masters

2015

Bhabha Atomic Research Centre (BARC),Homi Bhabha National Institute
India
Ph.D.

Experience

  • 2018-2019, Post-Doctoral Fellow | Institute for Plasma Research, Gandhinagar, Gujarat
  • 2017-2018, SERB Indo-Overseas Post-Doctoral Fellow | Technion Israel Institute of Technology, Haifa, Israel
  • 2015-2017, Post-Doctoral Fellow | Institute for Plasma Research, Gandhinagar, Gujarat

Research Interest

  • Study of The Discharge Behaviour Along Gas Solid Interface Under Pulsed Conditions Using Particle-In-Cell Codes.
  • Design and Development of Compact Pulse Power Systems for Surface Flashover Studies and Radiated Field Studies Using Antenna.
  • Study of Surface Flashover Behaviour Using Optical Emission Spectroscopy and Surface Potential Decay Techniques.
  • Underwater Electrical Wire Explosion Studies Using Pulse Power Systems.

Awards & Fellowships

  • 2019 - Outstanding Doctoral Student Award from Homi Bhabha National Institute, Mumbai, India.
  • 2016 - SERB Indo-Overseas Post-Doctoral Fellow - Science and Engineering Research Board, Department of Science and Technology, Government of India
  • 2016 - International Travel Grant - Science and Engineering Research Board, Department of Science and Technology, Government of India
  • 2010 - 2015 - Department of Atomic Energy Graduate Fellow (DGFS) - Department of Atomic Energy, Government of India
  • 2010 - 2nd Prize for Poster Presentation at School of Pulse Power Technology - Board of Research in Fusion Science and Technology (BRFST) and Power Beam Society of India (PSI).
  • 2009 - Merit Scholarship for Best Academic Performance in M. Tech - Vellore Institute of Technology, Vellore, India

Publications

Journals
  • Microsecond timescale combustion of aluminum initiated by an underwater electrical wire explosion- A. Rososhek, S. Efimov, A. Goldman, S. V. Tewari, and Ya. E. Krasik - Physics of Plasmas,26, 053510, (2019)
  • Evolution of a shock wave generated by underwater electrical explosion of a single wire- A. Rososhek, S. Efimov, V. Tz. Gurovich, A. Virozub, S. V. Tewari, and Ya. E. Krasik - Physics of Plasmas,26,042302, (2019)
  • Phase transitions of copper, aluminum and tungsten wires during underwater electrical explosions- A. Rososhek, S. Efimov, S.V. Tewari, D. Yanuka, and Ya. E. Krasik - Physics of Plasmas, 25, 102709 (2018)
  • Comparison of underwater electrical explosions of spherical wire arrays at different timescales-A. Rososhek, S. Efimov, S.V. Tewari, D. Yanuka, V. Tz. Gurovich, and Ya. E. Krasik - Physics of Plasmas, 25, 062709 (2018)
  • Spherical wire arrays electrical explosion in water and glycerol -A. Rososhek, S. Efimov, M. Nitishinskiy, D. Yanuka, S.V. Tewari, V. Gurovich, K. Khishchenko, and Ya. E. Krasik - Physics of Plasmas, 24, 122705 (2017)
  • Surface potential decay of PMMA and POM in air- S.V. Tewari, R. Chandra, S. K. Sharma, R. Sarathi, A. Sharma, and K. C. Mittal - IOP Material Research Express, 2, 045301 (2015)
  • Effect of spacer surface and geometry on surface discharge in gas using PIC simulation- S.V. Tewari, A. Roy, A. Sharma, and K. C. Mittal - IEEE Transactions on Plasma Science, 43, 587-593 (2015)
  • Optical emission spectroscopy study on flashover along insulator surface due to particle contamination- S.V. Tewari, R. J. Kshirsagar, A. Roy, R. Sarathi, A. Sharma, and K. C. Mittal - Laser and Particle Beams, 32, 681-689 (2014)
  • Development and Analysis of PFN based Compact Marx generator by using FIT technique for an Antenna Load- S.V. Tewari, R. Agarwal, P. C. Saroj, A. Sharma, K. C. Mittal, S. Umbarkar, and H. A. Mangalvedkar- IEEE Transactions on Plasma Science, 41, 2684-2690 (2013)
  • Particle-in-cell simulations of discharge along gas/solid interface- S.V. Tewari, A. Roy, A. Sharma, K. C. Mittal, D. P. Chakravarthy, A. Saxena, and N. M. Singh - IEEE Transactions on Plasma Science, 41, 578-584 (2013)
  • Simulation of Breakdown Mechanism in High Power Spark Gaps Filled with Nitrogen Gas at Atmospheric Pressure-A. Saxena, S.V. Tewari, N. M. Singh, A. Sharma, and K. C. Mittal - Radiation Effects and Defects in Solids, 170, 111-120 (2015)
  • First results of KALI-30 GW with 1 MV flash X-rays generation and characterization by Imaging plate- A. Sharma, A. M. Shaikh, K. Senthil, S. Mitra, R. Chandra, S. Vishnu, S. Sandeep, A. Roy, M. Rakhee, V. Sharma, M. B. Danish, T. S. Kolge, K. Ranjeet, R. Agrawal, P. C. Saroj, S.V. Tewari, and K. C. Mittal - Journal of Instrumentation, 9, P07011 (2014)
  • Energy Balance Aspect in KALI-30GW High Voltage Pulse Power Source-A. Sharma, S. Mitra, S. K. V. Sharma, S. Singh, S.V. Tewari, and K. C. Mittal - Laser and Particle Beams, 32, 531-535 (2014)
  • Explosive Emission Properties of Cathode Materials in Relativistic Electron Beam Generation-R. Chandra, A. Roy, S. Kalyanasundaram, A. S. Patel, V. K. Sharma, R. Menon, N. Pasula, R. Kumar, I. Ventizenko, A. Mashchenko, T. Kolge, S.V. Tewari, R. Agarwal, A. Sharma, and K. C. Mittal - IEEE Transactions on Plasma Science, 42, 3491-3497(2014).
  • Development of triggering arrangement of KALI- 30GW Marx generator-S. Mitra, T. S. Kolge, R. Agarwal, P. C. Saroj, A. Patel, K. Senthil, S.V. Tewari, A. Sharma, and K. C. Mittal - Journal of Korean Physical Society, 66, 553-557 (2015).
International Conferences
  • Initial Stage of Underwater Electrical Wire Explosion- S. Efimov, A. Rososhek, S.V. Tewari, and Ya. E. Krasik - 7th Euro-Asian Pulsed Power Conference (EAPPC/ BEAMS), September 16-20, 2018, Changsha, China.
  • Recent Results of Electrical Explosion of Wires and Wires Arrays in Water and Glycerol-A. Rososhek, S. Efimov, M. Nitishinskiy, D. Yanuka, S.V. Tewari, Ya. E. Krasik, K. Khishchenko, and S. Bland -45th International Conference on Plasma Science, June 24-28, 2018, Denver, USA
  • Investigation of 2.45 GHz Microwave Radiated Argon Plasma under Magnetized Condition-C. Mallick, S.V. Tewari, R. Kumar, and M. Bandyopadhyay-22nd International Workshop on ECR Ion Sources (ECRIS), August 28-September 1,2016, Busan, South Korea
  • Magnetic Field Design for 2.45 GHz Negative Hydrogen PMECRIS Chamber using FEM Simulation-C. Mallick, S.V. Tewari, R. Kumar, and M. Bandyopadhyay-22nd International Workshop on ECR Ion Sources (ECRIS), August 28-1 September, 2016, Busan, South Korea
  • Pulsed Flashover of Solid Dielectric Materials in Compressed Gas Environment- S.V. Tewari, A. Sharma, and K. C. Mittal-59th DAE Solid State Physics Symposium, 16-20 December, 2014, Vellore, India
  • Effect on electron drift velocity and ionization coefficient along a gas-solid interface- S.V. Tewari, C.S. Reddy, A. Sharma, and K. C. Mittal, 6-8 February, 2013, Dindigul, India
  • Particle-in-cell simulations of discharge along angled insulators in compressed gases S.V. Tewari, A. Roy, C. S. Reddy, A. Sharma, and K. C. Mittal-IEEE Pulse Power and Plasma Science Conference,16-21 June,2013, San Francisco, USA
  • Development of a 300kV Compact Co-axial Marx Generator Based on PFN- S.V. Tewari, C.S. Reddy, R. Agarwal, P. C. Saroj, A. Sharma, K. C. Mittal, and D. P. Chakravarthy-4th Euro-Asian Pulsed Power Conference (EAPPC/BEAMS), September 30-October 4, 2012 Karlsruhe, Germany
  • Computational Model of Discharge across a Gas/Solid Interface at High Pressure- S.V. Tewari, A. Roy, A. Sharma, K. C. Mittal, D. P. Chakravarthy, A. Saxena, and N. M. Singh - IEEE/Springer International Conference on Emerging Trends in Engineering and Technology, December 13-14, 2012, Trichy, India
  • Flash X-Ray Generation Using Folded Pulse Forming Line Based Marx Generator- S.V. Tewari, R. Agarwal, A. Sharma, K. V. Nagesh, and D. P. Chakravarthy-2nd International Symposium on Material Chemistry, December 7-11, 2010, Mumbai, India
  • Torque Ripple Minimization of BLDC Motor with Un-Ideal Back EMF- S.V. Tewari, and B. I. Rani-2nd International Conference on Emerging Trends in Engineering and Technology, December16 - 18 ,2009, Nagpur, India

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