Vibration-dissociation coupling effects on shock standoff distances

Michiko Furudate, Toshiyuki Suzuki, Keisuke Sawada

Research output: Contribution to conferencePaperpeer-review


Shock standoff distances for a sphere in intermediate hypersonic flows (2.5- 4.5 km/s) are calculated to investigate the effect of vibration-dissociation coupling on the nonequilibrium thermochemical state in the shock layer. The vibration-dissociation coupling effect in the two-temperature model of Park is examined through 1) changing the definition of the controlling temperature of dissociation reactions, and 2) changing the amount of disposal of the energy in preferential dissociation. It is found that the shock standoff distance is insensitive to both of 1) and 2) in this flight regime. It is also found that the use of the CVDV model has a minor influence on the shock standoff distance.

Original languageEnglish
Publication statusPublished - 2000
Event34th Thermophysics Conference 2000 - Denver, CO, United States
Duration: 2000 Jun 192000 Jun 22


Other34th Thermophysics Conference 2000
Country/TerritoryUnited States
CityDenver, CO

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering
  • Condensed Matter Physics


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