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Shock interaction induced heat flux augmentation in hypersonic flows

Gülhan, Ali and Willems, Sebastian and Neeb, Dominik (2021) Shock interaction induced heat flux augmentation in hypersonic flows. Experiments in Fluids. Springer Nature. doi: 10.1007/s00348-021-03336-y. ISSN 0723-4864.

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Official URL: https://doi.org/10.1007/s00348-021-03336-y


This paper gives a summary of dedicated experiments on the shock interaction induced heat flux augmentation, by means of tests carried out in the hypersonic wind tunnel H2K. The first test case is devoted to the shock boundary layer interaction on a flat plate. The interaction impact has been varied by changing the free stream parameters and the position of the shock generator, i.e. shock impingement point on the plate. The heat flux distribution has been determined using surface temperature data measured by an infrared camera. The heat flux data combined with free stream flow parameters allow calculation of the Stanton number evolution. The second test case is a double sphere configuration with a variable axial and lateral distance between the spheres. This allowed measurements of the heat flux augmentation induced by a shock-shock teraction along the complete frontal surface of the second sphere, which was hit by the bow shock of the first sphere. Shock-shock and shock-boundary layer interaction effects are studied by means of experiments on the IXV flight konfiguration with double control flaps. Depending on the test configuration and flow parameters, shock interaction induced heat flux augmentation factors up to seven have been measured.

Item URL in elib:https://elib.dlr.de/146941/
Document Type:Article
Title:Shock interaction induced heat flux augmentation in hypersonic flows
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Willems, SebastianUNSPECIFIEDhttps://orcid.org/0000-0002-5576-7829UNSPECIFIED
Date:1 October 2021
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Springer Nature
Keywords:Hypersonics, Shock interaction, heat flux augmentation, infrared,
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Reusable Space Systems and Propulsion Technology, R - Key technologies for high-energy return flights of the carrier stages (STORT)
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Jäger, Monika
Deposited On:08 Dec 2021 10:53
Last Modified:12 May 2023 13:06

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