Numerical Investigation on the Effects of Air Dissociation upon Hypersonic Projectile in Standard Atmospheric Air

  • Hirotaka KasaharaEmail author
  • Akiko Matsuo
Conference paper


In this paper, the aerodynamic and thermal effects on hypersonic projectile which is launched by ground-based railgun are investigated. Air dissociation effect, which is the typical chemical reaction in hypersonic regime, is focused due to this influence to aerodynamic coefficient and temperature. Around projectile tip, strong dissociation reaction is generated due to high pressure and temperature. Also, there are dissociation region in the back part because of recirculation region. While the effect of dissociation to aerodynamic coefficient is small, surface temperature is affected by dissociation reaction.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Nagoya UniversityNagoyaJapan
  2. 2.Keio UniversityYokohamaJapan

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