TY - GEN
T1 - Computation of hypersonic flow around an isolated roughness element using kinetic theory
AU - Klothakis, Angelos
AU - Dylewicz, Kamil
AU - Theofilis, Vassilis
AU - Sawant, Saurabh S.
AU - Levin, Deborah A.
N1 - Effort sponsored by the Office of Naval Research under grant no. N00014-1-20-2195 ”Multi-scale modeling of unsteady shock-boundary layer hypersonic flow instabilities” (Dr Eric Marineau, PO). The authors would also like to thank the UKTC and EP-SRC for computational time on the UK supercomputing facility ARCHER2 via project EP/R029326/1 and the Texas Advanced Computing Center (TACC) at UT Austin for providing high-performance computing resources on the Frontera supercomputer under the Leadership Resource Allocation (LRAC) award CTS20001 granted to SSS and DAL, that has contributed to the research results reported in this paper.
PY - 2022
Y1 - 2022
N2 - The effect of an isolated cylindrical roughness element embedded in a laminar boundary layer on a semi-infinite flat plate in rarefied Mach 6 flow is studied using Direct Simulation Monte Carlo methods. Steady state solutions are computed in the three-dimensional configuration, two-dimensional results are obtained on the symmetry plane cutting through the cylinder center and the topologically different structure of laminar separation ahead of and behind the roughness element is documented and briefly discussed. Linear BiGlobal instability analysis of the flow field downstream of the roughness element has revealed stable, traveling, symmetric global modes.
AB - The effect of an isolated cylindrical roughness element embedded in a laminar boundary layer on a semi-infinite flat plate in rarefied Mach 6 flow is studied using Direct Simulation Monte Carlo methods. Steady state solutions are computed in the three-dimensional configuration, two-dimensional results are obtained on the symmetry plane cutting through the cylinder center and the topologically different structure of laminar separation ahead of and behind the roughness element is documented and briefly discussed. Linear BiGlobal instability analysis of the flow field downstream of the roughness element has revealed stable, traveling, symmetric global modes.
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M3 - Conference contribution
AN - SCOPUS:85143252737
T3 - IACAS 2022 - 61st Israel Annual Conference on Aerospace Science
BT - IACAS 2022 - 61st Israel Annual Conference on Aerospace Science
PB - Technion Israel Institute of Technology
T2 - 61st Israel Annual Conference on Aerospace Science, IACAS 2022
Y2 - 9 March 2022 through 10 March 2022
ER -