Numerical Analysis of Surface Heat Flux in a Forward-Facing Cavity

  • B. Sudarshan
  • S. Saravanan
Conference paper


Passive, semi-passive and active techniques are in active research to tackle the range of heat loads encountered by the hypersonic vehicles. The forward-facing cavity is one of the effective passive techniques explored for hypersonic short-duration vehicles in low-altitude atmospheric conditions. Studies show that the shape of the cavity plays a major role in reducing surface heat flux of the vehicle. To understand comprehensively the surface heat flux characteristics, we have considered the important cavity geometrical parameter, cavity length (L)/cavity diameter (D) ratio, from 0.5 to 5 and compared with and without cavity conditions. The transient simulation results showed that around 10–28% of heat flux reduced over the outer body surface. The variation of pressure and temperature at the cavity base and along the cavity wall for different L/Ds is also discussed.


  1. 1.
    J.K. Sambamurthi, L.D. Huebner, L.J. Utreja, AIAA, 87-1193, June 1987Google Scholar
  2. 2.
    L.D. Heubner, L.J. Utreja, J. Spacecr. Rocket. 30(3), 291–297 (1993)CrossRefGoogle Scholar
  3. 3.
    S.I. Silton, D.B. Goldstein, J. Fluid Mech. 528, 297–321 (2005)CrossRefGoogle Scholar
  4. 4.
    W.A. Engblom, D.B. Goldstein: AIAA, 96-0354, 1996Google Scholar
  5. 5.
    S. Saravanan, G. Jagadeesh, K.P.J. Reddy, J. Spacecr. Rocket. (2009)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • B. Sudarshan
    • 1
    • 2
  • S. Saravanan
    • 1
  1. 1.Department of Aerospace EngineeringIndian Institute of ScienceBangaloreIndia
  2. 2.B.M.S. College of EngineeringBangaloreIndia

Personalised recommendations