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Titel:

Investigation of vortical structures in the wake of pseudo-random roughness surfaces in hypersonic reacting boundary-layer flows

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Ulrich, Friedrich; Stemmer, Christian
Abstract:
The influence of roughness on the laminar-turbulent transition of hypersonic flows is investigated with Direct Numerical Simulations (DNS) in a re-entry scenario of an Apollo-like space capsule. A Mach 20 flow regime is simulated for conditions at an altitude of km. This study uses two different generating shapes (sinusoidal and triangular shaped waves) for random distributed patches. Stronger streamwise vorticity is observed for most configurations with the triangular base functions. The simula...     »
Stichworte:
Hypersonic flow; Laminar-turbulent transition; Re-entry vehicles; Cross-flow; Distributed roughness; Chemically reacting flow
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften
Zeitschriftentitel:
International Journal of Heat and Fluid Flow
Jahr:
2022
Band / Volume:
95
Seitenangaben Beitrag:
108945
Nachgewiesen in:
Scopus
Sprache:
en
Volltext / DOI:
doi:10.1016/j.ijheatfluidflow.2022.108945
Verlag / Institution:
Elsevier BV
E-ISSN:
0142-727X
Eingereicht (bei Zeitschrift):
15.06.2021
Angenommen (von Zeitschrift):
03.02.2022
Publikationsdatum:
01.06.2022
TUM Einrichtung:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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