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Investigation of the Heat Transfer in Hypersonic Flow on Modified Spike-Blunt Bodies

  • N. Gopalakrishna
  • S. Saravanan
Conference paper

Abstract

Hypersonic vehicles experience high levels of drag and aerodynamic heating during flight which has to be considered during the vehicle’s development phase. For this purpose, the high-speed community has been studying various techniques to minimize these effects, which in turn leads to longer range, lower fuel consumptions, and safer flight. In the last seven decades, one of the most reliable techniques developed was spikes. A spike mounted on the nose of high-speed vehicles modify the external flow field by pushing the bow shock away and causing flow separation zones ahead of the body where the pressure and heating rates are lower. In this study we have performed experimental and computational investigation of heat transfer over hemispherical blunt body with a modified spike protrusion in front which is termed as “double spike.” Further, we have compared this double spike with the single spike configuration along with the blunt body case.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • N. Gopalakrishna
    • 1
  • S. Saravanan
    • 1
  1. 1.Department of Aerospace EngineeringIndian Institute of ScienceBangaloreIndia

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