Implications of slip boundary conditions on surface Properties in hypersonic flows

Evgeny Titov, Jonathan Burt, Eswar Josyula, Ioannis Nompelis

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

9 Scopus citations


Velocity slip boundary conditions were implemented in continuum, perfect gas solver developed at AFRL and compared with the results of a Direct Simulation Monte Carlo solver, called HAP-DSMC. A Mach 7 flow past a blunted wedge and Mach 12 flow past a double cone were studied. For continuum flows, it was found that for the Maxwell's velocity slip model to be accurate, the Knudsen layer must be mesh-resolved. The AFRL solver was vectorized making use of modern GPU hardware. It was found that for the GPU implementation to be effective, large computational meshes need to be used to optimally load the processing units.

Original languageEnglish (US)
Title of host publication43rd AIAA Thermophysics Conference 2012
StatePublished - 2012
Event43rd AIAA Thermophysics Conference 2012 - New Orleans, LA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

Name43rd AIAA Thermophysics Conference 2012


Other43rd AIAA Thermophysics Conference 2012
Country/TerritoryUnited States
CityNew Orleans, LA


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