Sudip Das, Ph.D

            He is Professor in the Aerodynamics Division of the Department of Space Engineering and Rocketry, Birla Institute of Technology, Mesra, Ranchi, INDIA. He joined the Department in 2001. He holds a B.Engg. degree in Aeronautics, and M.Engg and Ph.D in Aerodynamics from Birla Institute of Technology, Mesra in Ranchi. He did his post Doctoral research from Faculty of Aerospace Engg., Technion, Israel Institute of Technology, ISRAEL.

            His research specialisation and interests are in high speed aerodynamics, wind tunnel testing, flow diagnostics methods and CFD. He has co-authored a book “Advances in Aerospace Engineering and Rocket Propulsion”, published for Summer School Programme, Organized by B.I.T. Mesra. He is a Joint Editor of the Book “Fluid Mechanics and Fluid Power”, 2007. He authored the book "Studies on a rectangular mixed compression supersonic air-intake", by Lambert Academic Publishing.

            He has more than 100 research paper publications including Journals and Conferences of National and international repute. He received the Best Paper Award : The Aerospace Engineering Journal of Institution of Engineers (India), May 2010 issue.

            He is a member of many professional societies such as The Aeronautical Society of India, Institution of Engineers(India), The Indian Society for Technical Education and National Society Fluid Mechanics and Fluid Power. He is actively involved in many sponsored projects funded by government agencies(Completed: 7, Ongoing: 1, Proposed: 3).

RESEARCH INTERESTS

• Experimental Aerodynamics
• Unsteady Aerodynamics
• Wind Tunnel Testing
• Computational Fluid Dynamics

RESEARCH AREAS

• Shock Wave Boundary Layer Interaction studies 
• Aerodynamics of Reentry Capsules
• High Speed Cavity Flow Dynamics
• Blunt nosed body with Aerospikes
• Supersonic Air-Intakes
• Low speed high angle of attack aerodynamics of Slender bodies
• Aerodynamics of Delta / Double Delta Wing 

THESIS SUPERVISED  [ B.E /M.E]      34

THESIS SUPERVISED  [ Ph.D]       04 (Ongoing)

PUBLICATIONS :         Total               : 137 (Journals 23, Conferences : 114 )

• Journals          : 23        [International (16) and National (7)]
• Conferences    : 114     [International (48) and National (66)]

International Journal :

1. Das, S., and Prasad, J. K., “Starting Characteristics of  Rectangular Supersonic Air-Intake with Cowl Deflection”, The Aeronautical Journal, Vol. 114, No. 1153, March 2010, pp. 177-189.
2. Sahoo, D., Das, S., Kumar, P., Prasad, J. K., "Effect of spike on steady and unsteady flow over a blunt body at supersonic speed", Acta Astronautica, Vol. 128, Nov.-Dec 2016, pp. 521-533.
3. Vignesh, R. P. S., Das, S., Kim, H. D., "Influence of vortex generator on cylindrical protrusion aerodynamics at various Mach numbers", Aerospace Science and Technology, Vol. 58, Nov. 2016, pp. 267-274.
4. Kumar, B. A., Kumar, P., Das, S., and Prasad, J. K., “Effect of Leading Edge Shapes on 81deg/45deg Double-Delta Wing at Low Speeds”, Proc. IMechE Part G: J Aerospace Engineering, Vol. 232, No. 16, pp. 3100-3107, December 2018, DOI: 10.1177/0954410017724822
5. Das, S., and Cohen, J., “Reducing Pressure Oscillations by change in Rear-Face Geometries at Subsonic and Transonic Speeds”, AIAA Journal, Vol. 55, No. 12, December 2017, pp. 4401-4411. (https://doi.org/10.2514/1.J055895)
6. Das, S., Kumar, P., and Prasad, J. K., “Hypersonic Flow over Hemispherical Blunt Body with Spikes”, Scientia Iranica B, 26(1), 2019, pp. 358-366, DOI: 10.24200/SCI.2018.20339.
7. Saranyamol, V.S., Kumar, P., and Das, S., “Influence of Impinging Wall Ramping Modification on the Flow Field of Open Cavity at M=2.0”, J. Fluids Eng, Transactions of ASME, Vol. 140, No. 7, July 2018, DOI: 10.1115/1.4039247.
8. Kumar, P., Roy, D., and Das, S., “Effect of Anhedral / Dihedral angles on a 76/40° Double Delta Wing at Low Speeds”, Journal of Aerospace Engineering, 32(6), 2019. DOI: 10.1061/(ASCE)AS.1943-5525.0001079.
9. Kumar, P., Gaurav, S., and Das, S., "Effect of Circular Ring on the Side Force of a Cone-Cylinder Body", J. Aerosp. Technol. Manag., São José dos Campos, Vol. 12, e0620, 2020.
10. Sahoo, D., Karthick, S. K., Das, S., and Cohen, J., “Parametric Experimental Studies on Supersonic Flow Unsteadiness over a Hemispherical Spiked Body”, AIAA Journal, Vol. 58, No. 8 (2020), pp. 3446-3463, DOI: doi/abs/10.2514/1.J059369.
11. Saranya VS, Kumar P, Das S., "Characteristics of Open Cavity Flow with Floor Inclinations at M=2.0", Proceedings of the Institution of Mechanical Engineers,  Part G : Journal of Aerospace Engineering, September 2020,  https://doi.org/10.1177/0954410020966493
12. Sahoo, D., Karthick, S. K., Das, S., and Cohen, J., “Shock-related Unsteadiness of axisymmetric Spiked Bodies in Supersonic Flow”, Experiments in Fluids 62, 89(2021), DOI: https://doi.org/10.1007/s00348-020-03130-2.
13. Krishna, T. V., Kumar P, Das S., Desikan, S.L.N., "Effect of Cavity Rear Wall Modifications on Pressure Fluctuations at Supersonic Speed", Acta Astronautica,  Vol. 185, May 2021, pp. 78-88, https://doi.org/10.1016/j.actaastro.2021.04.030
14. Sarwar MG, Kumar P, Das S., “Supersonic flow investigation of a drag reducing conical spike on a hemispherically blunted nose body”. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 2022;0(0). doi:10.1177/09544100221140942.
15. Arora A., Das, S.,  Kumar, P., "Flow Field Investigation of a Blended Wing Body in Low Speeds" Journal of Applied Fluid Mechanics, Vol. 16, No. 4, pp. 794-804, 2023.  doi.org/10.47176/jafm.16.04.1475
16. Karn, P.K., Das, S. & Kumar, P. Effect of ring on the flow unsteadiness of slender body at α = 50°. J Braz. Soc. Mech. Sci. Eng. 45, 173 (2023). https://doi.org/10.1007/s40430-023-04101-4

National Journal :

1. Omprakash, P., Roy, A., Das, S., and Prasad, J. K., “Investigation of Incompressible Flow past a Two-Dimensional Wedge”, Journal of Aerospace Sciences and Technologies, Vol. 59, No. 4, Nov. 2007, pp. 229-245.
2. Das, S., and Prasad, J. K., “Effect of Cowl Deflection Angle in a Supersonic Air-Intake”, Defence Science Journal, Vol. 59, No. 2, Mar. 2009, pp. 99-105.
3. Das, S., and Prasad, J. K., “Flow Field  investigation of a Rectangular Air-Intake with cowl bending”,  Journal of Aerospace Sciences and Technologies, Vol. 61,  No. 2, May 2009, pp. 312-324.
4. Das, S., and Prasad, J. K., “Unstart suppression and performance analysis of supersonic air-intake adopting bleed and cowl bending”, Journal of Institution of Engineers (I) - AS, Vol. 91, May 2010, pp. 27-35.
5. Das, S., Kumar, P., Ralh, M. K.,  Rao, R. K. M., Prasad, J. K., " Drag reduction of a hemispherical body adopting spike at supersonic speed", Jr. of Aerospace Sciences and Technologies, Vol. 65, No. 4, Nov 2013, pp. 313-325.
6. Bhumkar, Y. G., Kumar, P., Roy, A., Das, S., and Prasad, J. K., “Investigation of Incompressible Flow past Two Circular Cylinders of Different Diameters”, Defence Science Journal, Vol. 67, No. 5, Sep. 2017, pp. 487-496. DOI : 10.14429/dsj.67.11087
7. Karn, P. K., Kumar, P., Das, S. "Asymmetrical Vortex over Slender Body: A Computational Approach", Defense Science Journal, Vol. 71, No. 2, March 2021, pp. 282-288, DOI: 10.14429/dsj.71.15959.

SPONSORED PROJECTS BY GOVERNMENT AGENCY:      8

PROFESSIONAL MEMBERSHIP

• The Aeronautical Society of India – Member [ M16380 ]
• The Institution of Engineers (India) – Fellow [ F1222380 ]
• The Indian Society for Technical Education – Life Member [ LM 33356 ]
• National Society Fluid Mechanics and Fluid Power – Life Member [ LM 488 ]

HONORS / ADDITIONAL ACTIVITIES

• Scholarship: M.Engg. scholarship through GATE - 1998

• Book : Has co-authored a book “Advances in Aerospace Engineering and Rocket Propulsion”, published for Summer School Programme, Organized by Deptt. of Space Engineering and Rocketry, B.I.T. Mesra.
• Editor : Joint Editor of Book “Fluid Mechanics and Fluid Power”, 2007
• Joint Organising Secretary, 22^nd National Convention of Aerospace Engineers,    Nov. 27-29, 2008.
• Joint Organising Secretary, 25^th National Convention of Aerospace Engineers,     Nov. 04-05, 2011.
• Reviewer of papers for publications in National conferences and National/International Journals
• Best Paper Award : The Aerospace Engineering Journal of Institution of Engineers (India), Vol. 91, May 2010 issue.
• Book:           Title : Studies on a rectangular mixed compression supersonic air-Intake,                                                                                  Publisher : LAP (Lambert AcademicPublishing), ISBN No: 978-3-659-28493-9
• The PBC (Planning and Budgetary Commission) Program for Fellowships for Outstanding Post-doctoral Researchers from China and India (2013-15), awarded in Technion's Faculty of Aerospace Engineering and partially Funded by Israel Council for Higher Education.
• Invited as an Experimental Aerodynamics Expert at the Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa, Israel, for research collaboration activities during 3rd May - 1st  June 2016.
• Session Chair at the 46th AIAA Fluid Dynamics Conference of AIAA Aviation and Aeronautics Forum and Exposition 2016, Washington, D.C., USA, June 13-17, 2016.,
• Awarded with CICS Travel Fellowship from Centre for International Co-operation in Science, Chennai,  to attend AIAA Conference in USA.
• Executive Committee Member of the Aerospace Division Board of the Institution of Engineers (India) , Jharkhand State Centre. Year: 2016-18.
• Eminent Engineering Personality Award 2018, Institution of Engineers (I), October 2018.

PROFESSIONAL EXPERIENCE

1. National Aerospace Laboratories, Bangalore, India   [Graduate Trainee Sep. 1998 to July 1999]

2. Dr. S. G. Reddy Polytechnic, Bangalore  [Part time Lecturer Aug. 1998 to Mar. 1999]

3. Birla Institute of Technology, Mesra, Ranchi  [ Assistant Professor,  Aug. 2001 to Nov.2011]

4. Birla Institute of Technology, Mesra, Ranchi  [ Associate Professor, Nov. 2011 to Sep. 2013]

5. Technion, Israel Institute of Technology, Haifa, Israel  [ Post Doctoral Fellow, Oct. 2013 to June 2015]

6. Birla Institute of Technology, Mesra, Ranchi  [ Associate Professor, July 2015 to June 2017]

7. Birla Institute of Technology, Mesra, Ranchi  [ Professor, July 2017 onwards]