Behavior of two-temperature model in intermediate hypersonic regime

Michiko Furudate, Satoshi Nonaka, Keisuke Sawada

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Shock standoff distance for a sphere is calculated to examine the behavior of the existing two-temperature model in the intermediate hypersonic flow regime. Calculations are carried out for three binary scaling parameter values, corresponding to nearly frozen, nonequilibrium, and nearly equilibrium flows, respectively. The obtained shock standoff distances are compared with the experimental data obtained in a ballistic range. It is shown that the two-temperature model reproduces the shock standoff distances in the intermediate hypersonic flows fairly well but tends to lose its accuracy where vibrational excitation occurs but chemical reactions are nearly frozen.

Original languageEnglish
Pages (from-to)424-430
Number of pages7
JournalJournal of thermophysics and heat transfer
Issue number4
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Space and Planetary Science


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