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Thermal Non-equilibrium Effects on Spherically Blunted Cone Flows

Hannemann, Klaus and Martinez Schramm, Jan and Riedl, Philipp and Hannemann, Volker and Oblapenko, Georgii (2018) Thermal Non-equilibrium Effects on Spherically Blunted Cone Flows. 12th International Workshop on Shock Tunnel Technology, 2018-04-12 - 2018-04-13, Kakuda, Japan.

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Spherically blunted cones are commonly utilized as re-entry or entry capsules. Depending on the cone angle, the shock shape is either dominated by the spherical nose or the conical part. To understand the shock shape transition behaviour in more detail, a systematic numerical, experimental and analytical study is currently conducted. As part of this, experiments performed in the High Enthalpy Shock Tunnel Göttingen, HEG of the German Aerospace Center are combined with numerical studies conducted with the DLR TAU code. The comparison of the measured and computed shock stand-off distance clearly shows the influence of the different physico-chemical models used in the TAU code. The measured values are best fitted by the assumption of a chemical and thermal non-equilibrium flow. Further, the measured and computed drag force and the computed variation of surface pressure and wall heat flux distrinution as function of the cone angle is discussed.

Item URL in elib:https://elib.dlr.de/119447/
Document Type:Conference or Workshop Item (Speech)
Title:Thermal Non-equilibrium Effects on Spherically Blunted Cone Flows
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Martinez Schramm, JanUNSPECIFIEDhttps://orcid.org/0000-0002-8891-6253UNSPECIFIED
Date:13 April 2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Spherically Blunted Cone, Thermal Non-Equilibrium, High Enthalpy Shock Tunnel Göttingen, Ground Based Testing, CFD
Event Title:12th International Workshop on Shock Tunnel Technology
Event Location:Kakuda, Japan
Event Type:international Conference
Event Start Date:12 April 2018
Event End Date:13 April 2018
Organizer:JAXA Kakuda Space Center
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
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Hannemann, Prof. Dr. Klaus
Deposited On:15 May 2018 11:37
Last Modified:24 Apr 2024 20:23

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