Hypersonic Intake Starting Characteristics–A CFD Validation Study

  • Soumyajit Saha Defence Research & Development Laboratory, Hyderabad
  • Debasis Chakraborty Defence Research & Development Laboratory, Hyderabad
Keywords: Numerical simulation, hypersonic intake, computational fluid dynamics


Numerical simulation of hypersonic intake starting characteristics is presented. Three dimensional RANS equations are solved alongwith SST turbulence model using commercial computational fluid dynamics (CFD) software. Wall pressure distribution and intake performance parameters are found to match well with experimental data for different free stream Mach number in the range of 3-8. The unstarting of the intake is traced from the sudden drop of mass capture ratio. Wall condition (adiabatic or isothermal) is seen to have pronounced effect in estimating the performance parameters in the intake. The computed unstarting Mach number is seen to be higher for adiabatic condition compared to isothermal condition. For unstarting case, large separation bubble is seen near the entrance of the intake, which is responsible for expulsion of the shock system out of the intake.

Defence Science Journal, 2012, 62(1), pp.147-152, DOI:http://dx.doi.org/10.14429/dsj.62.1340

Author Biographies

Soumyajit Saha, Defence Research & Development Laboratory, Hyderabad
Mr Soumyajit Saha obtained his ME (Aerospace Engg) from Indian Institute of Science (IISc), Bengaluru. Presently, he is working as Scientist E in Directorate of Computational Dynamics, Defence Research & Development Laboratory (DRDL), Hyderabad. His research interests include: CFD, aerodynamics, high-speed combustion, and propulsion. He has 5 journal and 4 conference publications to his credit.

Debasis Chakraborty, Defence Research & Development Laboratory, Hyderabad
Dr Debasis Chakraborty obtained his PhD in Aerospace Engineering from IISc, Bengaluru. Presently, he is working as Technology Director, Computational Dynamics Directorate, DRDL, Hyderabad. His research interests are : CFD, aerodynamics, highspeed combustion, and propulsion. He has about 40 journal and 50 conference publications to his credit.


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How to Cite
Saha, S., & Chakraborty, D. (2012). Hypersonic Intake Starting Characteristics–A CFD Validation Study. Defence Science Journal, 62(3), 147-152. https://doi.org/10.14429/dsj.62.1340
Applied Physics & Fluid Dynamics

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