User: Guest  Login
Title:

Unsteady evolution of distributed roughness-induced vortices under re-entry conditions

Document type:
Zeitschriftenaufsatz
Author(s):
Ulrich, Friedrich; Stemmer, Christian
Abstract:
This study investigates a re-entry scenario of an Apollo-like space capsule with Direct Numerical Simulations (DNS). The simulation includes the chemical equilibrium gas model. Cross-flow-like vortices are induced through random distributed roughness patches on the capsule surface. Two different machine learning methods are used to predict the maximum vorticity magnitude downstream of a pseudo-random roughness patch, the wall-normal location of the vortex core and spanwise and wall-normal gradie...     »
Keywords:
Roughness; Hypersonic flow; Hypersonic boundary layer; Laminar-turbulent transition; Machine Learning
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
CEAS Space Journal
Year:
2023
Journal volume:
15
Pages contribution:
971–988
Covered by:
Scopus
Language:
en
Fulltext / DOI:
doi:10.1007/s12567-023-00510-2
WWW:
https://link.springer.com/article/10.1007/s12567-023-00510-2#citeas
Publisher:
Springer Science and Business Media LLC
E-ISSN:
1868-25021868-2510
Notes:
Funding text This research was supported by founds of the TUM International Graduate School of Science and Engineering (IGSSE) and the Cusanuswerk e.V scholarship. Further, the authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) for supporting this project by providing computing time on the GCS Supercomputer SuperMUC-NG at Leibniz Supercomputing Centre (www.lrz.de).
Submitted:
30.11.2022
Accepted:
19.06.2023
Date of publication:
05.07.2023
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
 BibTeX