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Document type:
Zeitschriftenaufsatz 
Author(s):
Di Giovanni, A.; Stemmer, C. 
Title:
Roughness-Induced Crossflow-Type Instabilities in a Hypersonic Capsule Boundary Layer Including Nonequilibrium 
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...    »
 
Keywords:
Instabilities; Hypersonic Boundary Layer; 
Dewey Decimal Classification:
620 Ingenieurwissenschaften 
Journal title:
Journal of Spacecraft and Rockets 
Year:
2019 
Journal volume:
Volume 56, Issue 5, 2019, Pages 1409-1423 
Covered by:
Scopus 
Language:
en 
Fulltext / DOI:
Print-ISSN:
00224650 
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik