Subrata Roy (scientist)

Subrata Roy (Bengali: সুব্রত রায়) is an India-born American inventor, educator, and scientist known for his work in plasma-based flow control and plasma-based self-sterilizing technology. He is a professor of Mechanical and Aerospace Engineering at the University of Florida and the founding director of the Applied Physics Research Group at the University of Florida.[1][2]

Subrata Roy
Born
Kolkata, West Bengal, India
NationalityAmerican
Alma materJadavpur University B.M.E.; University of Tennessee, Knoxville Ph.D.
Known forFlow Control using novel plasma actuators; and micro and nanofluidics.
Scientific career
FieldsComputational Fluid Dynamics (non-relativistic, non-quantum, Newtonian); Plasma physics; Flow Control; Turbulence; Hypersonic speed; Microfluidics; Nanofluidics;Nanotechnology;
Institutions
Websitemae.ufl.edu/people/profiles/subrata-roy/

Biography

Subrata Roy earned his Ph.D. in engineering science from the University of Tennessee in Knoxville, TN in 1994.[3] Roy was a senior research scientist at Computational Mechanics Corporation in Knoxville, Tennessee,[4] and then professor of mechanical engineering at the Kettering University up to 2006.[5] In 2006, Roy joined the University of Florida as a faculty member of the Department of Mechanical and Aerospace Engineering. He is a professor of Mechanical and Aerospace Engineering and the founding director of the Applied Physics Research Group at the University of Florida.[1][2] He has also worked as a visiting professor at the University of Manchester[6] and the Indian Institute of Technology Bombay.[7]

Scientific work

Subrata Roy's research and scientific work encompasses Computational Fluid Dynamics (CFD), plasma physics, heat transfer, magnetohydrodynamics, electric propulsion, and micro/nanoscale flows.[1] In 2003, Roy incorporated Knudsen's theory that handles surface collisions of molecules by diffusive and specular reflections into hydrodynamic models,[8][9][10] which has been used in shale gas seepage studies.[11][12][13][14] In 2006, Roy invented the Wingless Electromagnetic Air Vehicle (WEAV) which was included in Scientific American in 2008 as the world's first wingless, electromagnetically-driven air vehicle design.[15][16][17] Roy is known for introducing various novel designs and configurations of plasma actuators for applications in mitigation of flow drag related fuel consumption,[18][19][20] noise reduction, and active film cooling of turbine blades and propulsion.[21][22] These designs and configurations include serpentine geometry plasma actuators,[23][24] fan geometry plasma actuators,[25] micro-scale actuators,[26][27] multibarrier plasma actuators,[28] and plasma actuated channels of atmospheric plasma actuators.[29] Roy also led multidisciplinary research on innovating eco-friendly ways of microorganism decontamination using plasma reactors.[30][31][32][33][34]

Roy served as the Technical Discipline Chair for the 36th AIAA Thermophysics Conference in 2003, the 48th Aerospace Sciences Meeting (for Thermophysics) in 2010, the AIAA SciTech Plasma Dynamics and Lasers Conference in 2016, and served as the Forum Technical Chair for AIAA SciTech in 2018. Roy served (2005–2007) as an Associate Editor of the Journal of Fluids Engineering and served (2012–2017) as an Academic Editor of PLOS One.[2] Roy serves as a nation appointed member to the NATO Science and Technology Organisation working group on plasma actuator technologies;[35] a member of the Editorial Board of Scientific Reports-Nature ; and, an Associate Editor of Journal of Fluid Flow, Heat and Mass Transfer.[2] Roy is a Distinguished Visiting Fellow of the Royal Academy of Engineering, a Fellow of the Royal Aeronautical Society, a lifetime member and Fellow of the American Society of Mechanical Engineers, and an Associated Fellow of the American Institute of Aeronautics and Astronautics.[2]

References
  1. "Subrata Roy". UF Department of Mechanical and Aerospace Engineering. University of Florida Department of Mechanical and Aerospace Engineering. Retrieved April 17, 2020.
  2. "Dr. Subrata Roy". Applied Physics Research Group. University of Florida Department of Mechanical and Aerospace Engineering. Retrieved April 17, 2020.
  3. "UT CFDLAB Alumni". UT Computational Framework and Data Laboratory (CFDLAB). University of Tennessee. Retrieved April 17, 2020.
  4. Subrata Roy and A. J. Baker (1995). A Post-Processing Algorithm For CFD Dispersion Error Annihilation (PDF) (Report). S2CID 10063160.CS1 maint: uses authors parameter (link)
  5. "Kettering University's NASA Lab Is Computing How to Make Satellites Faster". Kettering University News. Kettering University. November 27, 2001. Retrieved April 17, 2020.
  6. Annual Review 2012/2013 (PDF) (Report). Royal Academy of Engineering. Retrieved April 17, 2020.
  7. Campus Diary March-April 2017 (PDF) (Report). Indian Institute of Technology Bombay. Retrieved June 7, 2020.
  8. S Roy, R Raju, HF Chuang, BA Cruden, M Meyyappan, Journal of Applied Physics 93 (8), 4870-4879 (2003)
  9. SM Cooper, BA Cruden, M Meyyappan, R Raju, S Roy, Nano Letters 4 (2), 377-381 (2004)
  10. M Seyyedattar, S Zendehboudi and S Butt, Earth-Science Reviews 192 (2019) 194–213.
  11. F Javadpur, "Nanopores and Apparent Permeability of Gas Flow in Mudrocks (Shales and Siltstone)", J. Can. Pet. Technol., 48 (08) (2009).
  12. G. Mao Sheng, et al., Fractals, Vol. 24, No. 01, 1650002 (2016)
  13. International Journal of Heat and Mass Transfer 139 (2019) 144–179
  14. MK Ali, A Takbiri-Borujeni, Fuel 206 (15) (2017), pp. 724-737
  15. Greenemeier, Larry (7 July 2008). "The World's First Flying Saucer: Made Right Here on Earth". Scientific American.
  16. Roy, Subrata; Arnold, David; Lin, Jenshan; Schmidt, Tony; Lind, Rick; et al. (20 December 2011). Air Force Office of Scientific Research; University of Florida (eds.). Demonstration of a Wingless Electromagnetic Air Vehicle (PDF) (Report). Defense Technical Information Center. ASIN B01IKW9SES. AFRL-OSR-VA-TR-2012-0922.
  17. "Wrangling flow to quiet cars and aircraft," EurekAlert, http://www.eurekalert.org/pub_releases/2013-10/aiop-wft101813.php, viewed on 5/20/2020.
  18. "Snakelike Zaps To Flowing Air Could Improve Vehicle Aerodynamics," Inside Science News Service, http://www.insidescience.org/content/snakelike-zaps-flowing-air-can-improve-vehicle-aerodynamics/1477, viewed on 5/20/20.
  19. Roy, Subrata; Zhao, Pengfei; Dasgupta, Arnob; Soni, Jignesh. "Dielectric barrier discharge actuator for vehicle drag reduction at highway speeds," AIP Advances, 6 (2016) 025322.
  20. S. Roy, C.-C. Wang, Plasma actuated heat transfer, Appl. Phys. Lett. 92 (2008) 231501
  21. P. Audier, M., N. Benard, E. Moreau, Film cooling effectiveness enhancement using surface dielectric barrier discharge plasma actuator, Int. J. Heat Fluid Flow 62 (2016), 247–57.
  22. Roy, Subrata, and Chin-Cheng Wang. "Bulk flow modification with horseshoe and serpentine plasma actuators." Journal of Physics D: Applied Physics 42.3 (2009): 032004.
  23. Riherd, Mark, and Subrata Roy. "Serpentine geometry plasma actuators for flow control." Journal of Applied Physics 114.8 (2013): 083303.
  24. Portugal, Sherlie; Choudhury, Bhaswati; Lilley, Alexander; Charters, Christopher; Porrello, Christian; Lin, Jenshan; Roy, Subrata (1 April 2020). "A fan-shaped plasma reactor for mixing enhancement in a closed chamber". Journal of Physics D: Applied Physics. 53 (22LT01): 22LT01. Bibcode:2020JPhD...53vLT01P. doi:10.1088/1361-6463/ab7e64.
  25. Chin-Cheng Wang and Subrata Roy, Microscale plasma actuators for improved thrust density, Journal of Applied Physics 106 (2009) 013310-013310-7.
  26. J.C. Zito, R.J. Durscher, J. Soni, S. Roy, and D.P. Arnold, Appl. Phys. Lett. 100, 193502 (2012); https://doi.org/10.1063/1.4712068
  27. Durscher, Ryan; Roy, Subrata (January 2010). "Novel Multi-Barrier Plasma Actuators for Increased Thrust". AIAA 2010-965. 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. Orlando, Florida. doi:10.2514/6.2010-965.
  28. Riherd, Mark; Roy, Subrata (7 September 2012). "Measurements and simulations of a channel flow powered by plasma actuators". Journal of Applied Physics. 112 (33501): 053303–053303–9. Bibcode:2012JAP...112e3303R. doi:10.1063/1.4749250.
  29. Mastanaiah, N., J. Johnson and S. Roy, 2013, "Effect of dielectric and liquid on plasma sterilization using dielectric barrier discharge plasma," PLoS ONE 8(8): e70840
  30. US Issued 9,757,487, Subrata Roy & Karl Zawoy, "Self Sterilizing Device Using Plasma Fields", issued September 12, 2017.
  31. Xie, J., Q. Chen, P. Suresh, S. Roy, J. F. White and A. D. Mazzeo, 2017, "Paper-based plasma sanitizers," Proceedings of National Academy of Science, 114 (20) 5119-5124
  32. Choudhury, Bhaswati; Portugal, Sherlie; Mastanaiah, Navya; Johnson, Judith A.; Roy, Subrata (2018). "Inactivation of Pseudomonas aeruginosa and Methicillin-resistant Staphylococcus aureus in an open water system with ozone generated by a compact, atmospheric DBD plasma reactor". Scientific Reports. 8 (1): 17573. Bibcode:2018NatSR...817573C. doi:10.1038/s41598-018-36003-0. PMC 6279761. PMID 30514896.
  33. Chaudhuri, Prasun (11 November 2019). "Zap those bugs". The Telegraph.
  34. https://www.sto.nato.int/Pages/default.aspx
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