DSMC modeling of internal energy excitation and dissociation of molecular nitrogen in hypersonic reentry flows

Zheng Li, Ilyoup Sohn, Deborah A. Levin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The current work implemented in DSMC vibrational excited levels of N 2 and transitions between the levels as well as the dissociation of nitrogen molecules from different levels. Results show that due to insufficient collisions, the flow around a sphere at 70/75 km altitudes has a high degree of nonequilibrium in the vibrational mode where the ground level is separated from the higher levels. The continuum-level calculation results are different from the work of Candler and the nonequilibrium profile predicted by the discrete-level calculation is also different.

Original languageEnglish (US)
Title of host publication27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27
Pages1233-1238
Number of pages6
EditionPART 1
DOIs
StatePublished - 2011
Externally publishedYes
Event27th International Symposium on Rarefied Gas Dynamics, RGD27 - Pacific Grove, CA, United States
Duration: Jul 10 2011Jul 15 2011

Publication series

NameAIP Conference Proceedings
NumberPART 1
Volume1333
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other27th International Symposium on Rarefied Gas Dynamics, RGD27
Country/TerritoryUnited States
CityPacific Grove, CA
Period7/10/117/15/11

Keywords

  • DSMC
  • Kinetic theory

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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