Gas kinetic scheme for continuum and near-continuum hypersonic flows

Wei Liao*, Li Shi Luo, Kun Xu

*Corresponding author for this work

Research output: Chapter in Book/Conference Proceeding/ReportConference Paper published in a bookpeer-review

Abstract

We present a unified approach for both continuum and near-continuum flows based on the Boltzmann equation and kinetic theory. We use the gas-kinetic scheme (GKS) developed from the linearized Boltzmann equation for the continuum flows and a modified GKS with a variable relaxation time for the near-continuum flows. The gas-kinetic schemes are validated with simulations of the hypersonic flow past a hollow flare at Mach number 9.91 and the shock structures of Argon gas at Mach 8.0 and 9.0. Our results show that the gas-kinetic schemes can indeed simulate both the continuum and near-continuum flows.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meetin
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages1355-1365
Number of pages11
ISBN (Print)1563478900, 9781563478901
DOIs
Publication statusPublished - 2007
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: 8 Jan 200711 Jan 2007

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume2

Conference

Conference45th AIAA Aerospace Sciences Meeting 2007
Country/TerritoryUnited States
CityReno, NV
Period8/01/0711/01/07

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