TY - GEN
T1 - Implications of slip boundary conditions on surface Properties in hypersonic flows
AU - Titov, Evgeny
AU - Burt, Jonathan
AU - Josyula, Eswar
AU - Nompelis, Ioannis
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84880825033
SN - 9781624101861
T3 - 43rd AIAA Thermophysics Conference 2012
BT - 43rd AIAA Thermophysics Conference 2012
T2 - 43rd AIAA Thermophysics Conference 2012
Y2 - 25 June 2012 through 28 June 2012
ER -