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Heat Flux Measurement on Spinning Test Models in Hypersonics

Willems, Sebastian and Weiss, Armin and Schleutker, Thorn and Gülhan, Ali (2021) Heat Flux Measurement on Spinning Test Models in Hypersonics. 2021 Clean Space Industrial Days, 20.-24.09.2021, Virtua.

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Abstract

Usually heat flux measurements in ground test facilities as well as simulations in the hypersonic flow regime are performed at static conditions with non-moving objects. But objects performing an uncontrolled re-entry are quite likely to rotate and/or tumble. This is true for meteorites, satellites and empty stages of launch vehicles. Previous experiments were conducted with free flying objects in the hypersonic test section H2K of the Department of Supersonic and Hypersonic Technologies at the German Aerospace Centre DLR in Cologne, which focused on the forces acting on rotating and tumbling objects. However, these experiments were not suited to perform heat flux measurements. Therefore, a new set-up with forced spinning objects have been tested. This activity is complementary to demise experiments with spinning objects in the arc heated facility L2K at DLR in Cologne. We present the concept of the experiments, the challenges and first experimental results of spinning cylinders.

Item URL in elib:https://elib.dlr.de/147672/
Document Type:Conference or Workshop Item (Speech)
Title:Heat Flux Measurement on Spinning Test Models in Hypersonics
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Willems, SebastianSebastian.Willems (at) dlr.dehttps://orcid.org/0000-0002-5576-7829
Weiss, ArminArmin.Weiss (at) dlr.deUNSPECIFIED
Schleutker, ThornThorn.Schleutker (at) dlr.dehttps://orcid.org/0000-0002-1833-2850
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:22 September 2021
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Wind Tunnel, Testing, Demise, Aerodynamics, Dynamic Simulation
Event Title:2021 Clean Space Industrial Days
Event Location:Virtua
Event Type:international Conference
Event Dates:20.-24.09.2021
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Schleutker, Thorn
Deposited On:10 Jan 2022 10:13
Last Modified:10 Jan 2022 10:13

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