Computation of rarefied gas flows around a NACA 0012 airfoil

Jing Fan, Iain D. Boyd, Chun Pei Cai, Konstantinos Hennighausen, Graham V. Candler

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

4 Scopus citations

Abstract

Rarefied gas flows around a NACA 0012 airfoil with the speed varying from supersonic to low subsonic are simulated using particle and continuum approaches. Some crucial issues such as serious’statistical scatter encountered in DSMC calculation of the low subsonic flow, prediction of continuum breakdown, and outer boundary conditions for the transonic and-subsonic flows, are addressed. The simulated density and velocity flowfields are in agreement with experimental data. A criterion of continuum breakdown based on the Chapman-Enskog theory indicates that the kinetic foundation of the Navier-Stokes equations is invalid both at the-bow shock and in a large region around the airfoil for supersonic flows, in the region adjacent to the body surface for transonic flow, and in the thin Knudsen layer for low subsonic flow.

Original languageEnglish (US)
Title of host publication30th Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - Jan 1 1999
Event30th Fluid Dynamics Conference, 1999 - Norfolk, United States
Duration: Jun 28 1999Jul 1 1999

Other

Other30th Fluid Dynamics Conference, 1999
Country/TerritoryUnited States
CityNorfolk
Period6/28/997/1/99

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