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Distributed Roughness-Induced Transition in a Hypersonic Boundary-Layer on a Cone

Surujhlal, Divek and Ponchio Camillo, Giannino and Wagner, Alexander (2019) Distributed Roughness-Induced Transition in a Hypersonic Boundary-Layer on a Cone. 19. STAB-Workshop, 5.-6.11.2019, Göttingen, Germany.

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Abstract

This paper details the experimental study of roughness-induced boundary-layer transition in a hypersonic flow of moderate-enhalpy (i.e., 3.4 MJ/kg) on a 7-degree half-angle cone tested in the Hochenthalpiekanal Göttingen (HEG) at Mach 7.4. The cone model used has two different sides: one side is of a polished stainless steel finish; the other side consists of a porous insert. This work focuses on initial results obtained for the polished metal surface. Given the facility-dependent nature of experimental evaluation of distributed roughness-induced transition, the results obtained form part of a database collection for the HEG facility. These are to be used in a forthcoming shock-wave turbulent boundary-layer interaction campaign.

Item URL in elib:https://elib.dlr.de/130141/
Document Type:Conference or Workshop Item (Speech)
Title:Distributed Roughness-Induced Transition in a Hypersonic Boundary-Layer on a Cone
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Surujhlal, DivekDivek.Surujhlal (at) dlr.deUNSPECIFIED
Ponchio Camillo, GianninoGiannino.PonchioCamillo (at) dlr.deUNSPECIFIED
Wagner, AlexanderDLRhttps://orcid.org/0000-0002-9700-1522
Date:5 November 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:hypersonic, rougness induced transition, HEG, Transition control
Event Title:19. STAB-Workshop
Event Location:Göttingen, Germany
Event Type:Workshop
Event Dates:5.-6.11.2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Wiederverwendbare Raumfahrtsysteme
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Wagner, Alexander
Deposited On:08 Nov 2019 16:31
Last Modified:08 Nov 2019 16:31

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