TY - GEN
T1 - Linear stability of Couette flow with DSMC-informed boundary conditions
AU - Dylewicz, Kamil
AU - Cerulus, Nicolas
AU - Klothakis, Angelos
AU - Theofilis, Vassilios
AU - Levin, Deborah
N1 - Authors gratefully acknowledge the UK Turbulence Consortium and EPSRC for computational time made available on the UK supercomputing facility ARCHER2 via project EP/R029326/1. Effort sponsored by the Office of Naval Research under grant no. N00014-1-20-2195 "Multi-scale modelling of unsteady shock-boundary layer hypersonic flow instabilities" (Dr Eric Marineau, PO).
PY - 2024/2/8
Y1 - 2024/2/8
N2 - This work investigates the influence of slip boundary conditions on modal stability analysis of compressible Couette flow at two distinct Mach numbers. Slip boundary conditions are extracted directly from kinetic gas theory, using Direct Simulation Monte Carlo, and are applied to the ordinary differential equations governing compressible Couette flow. Modal stability analysis shows only qualitative differences between least stable eigensolutions for the respective cases with and without slip boundary conditions. This is in good agreement with findings of a similar study conducted for hypersonic boundary layers by Klothakis et al. (Theoretical and Computational Fluid Dynamics 36, 117-139, 2022).
AB - This work investigates the influence of slip boundary conditions on modal stability analysis of compressible Couette flow at two distinct Mach numbers. Slip boundary conditions are extracted directly from kinetic gas theory, using Direct Simulation Monte Carlo, and are applied to the ordinary differential equations governing compressible Couette flow. Modal stability analysis shows only qualitative differences between least stable eigensolutions for the respective cases with and without slip boundary conditions. This is in good agreement with findings of a similar study conducted for hypersonic boundary layers by Klothakis et al. (Theoretical and Computational Fluid Dynamics 36, 117-139, 2022).
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U2 - 10.1063/5.0188611
DO - 10.1063/5.0188611
M3 - Conference contribution
AN - SCOPUS:85185793864
T3 - AIP Conference Proceedings
BT - AIP Conference Proceedings
A2 - Myong, Rho Shin
A2 - Xu, Kun
A2 - Wu, Jong-Shinn
PB - American Institute of Physics Inc.
T2 - 32nd International Symposium on Rarefied Gas Dynamics, RGD 2022
Y2 - 4 July 2022 through 8 July 2022
ER -