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Numerical Investigation of Hypersonic Boundary-Layer Stabilization by Porous Surfaces

Wartemann, Viola and Lüdeke , Heinrich and Sandham, Neil D. (2012) Numerical Investigation of Hypersonic Boundary-Layer Stabilization by Porous Surfaces. AIAA Journal, Vol. 50 (6), 1281-1290 . American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J051355. ISSN 0001-1452.

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Official URL: https://www.aiaa.org/IframeTwoColumn.aspx?id=5962


The acoustic second-mode instability predicted by linear stability theory is compared with direct numerical simulation for a hypersonic flow over various porous walls. The damping effect of the micropores on the second mode is shown by comparison of the two different approaches. In addition to investigating the effect of pore size, the influence of the pore shape is studied by using spanwise grooves and cylindrical pores. Specifically, the comparability of different pore shapes by two definitions of hydraulic diameter is analyzed. The influence of rarefied gas behavior of the flow inside the pores is also investigated by comparing a slip boundary condition with finite Knudsen numbers with a nonslip boundary condition for different radii and pore depths.

Item URL in elib:https://elib.dlr.de/63189/
Document Type:Article
Title:Numerical Investigation of Hypersonic Boundary-Layer Stabilization by Porous Surfaces
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wartemann, Violaviola.wartemann (at) dlr.deUNSPECIFIED
Sandham, Neil D.University of SouthamptonUNSPECIFIED
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Volume:Vol. 50
DOI :10.2514/1.J051355
Page Range:1281-1290
EditorsEmailEditor's ORCID iD
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:hypersonic boundary layer, transition control, porous surfaces, DNS, linear stability theory, FLOWer
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Projekt IMENS-3C (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Wartemann, Viola
Deposited On:08 Aug 2012 16:21
Last Modified:08 Mar 2018 18:41

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