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Titel:

Roughness-Induced Crossflow-Type Instabilities in a Hypersonic Capsule Boundary Layer Including Nonequilibrium

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Di Giovanni, A.; Stemmer, C.
Abstract:
The current study investigates the unsteady disturbance development in a three-dimensional, high-enthalpy boundary layer on a capsule-like hemispherical geometry with pseudo-random distributed roughness. Direct Numerical Simulations are conducted for a typical reentry scenario at M 20 where chemical dissociation takes place. Unsteady disturbances at various frequencies are introduced into the flow to analyze the instabilities developing in the wake of the roughness patch. The amplification of sm...     »
Stichworte:
Instabilities; Hypersonic Boundary Layer;
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften
Zeitschriftentitel:
Journal of Spacecraft and Rockets
Jahr:
2019
Band / Volume:
Volume 56, Issue 5, 2019, Pages 1409-1423
Nachgewiesen in:
Scopus
Sprache:
en
Volltext / DOI:
doi:10.2514/1.A34404
Print-ISSN:
00224650
TUM Einrichtung:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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