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FORCE MEASUREMENT COMPARISON OF BLUNT CONES IN HIGH-ENTHALPY SHOCK TUNNEL HEG AND HIEST

Tanno, Hideyuki and Noguchi, Y and Ito, Katsuhiro and Friedl, Damian and Martinez Schramm, Jan and Hannemann, Klaus (2019) FORCE MEASUREMENT COMPARISON OF BLUNT CONES IN HIGH-ENTHALPY SHOCK TUNNEL HEG AND HIEST. International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (FAR), 30.9-3.10.2019, Monopoli, Italien.

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Official URL: https://atpi.eventsair.com/QuickEventWebsitePortal/far2019/website

Abstract

Comparative aerodynamic test campaigns with the same test model are performing in the free-piston shock tunnel DLR-HEG and JAXA-HIEST under identical test flow condition. A blunted nose cone, which nose radius is 50mm, is adopted as the reference test model for direct comparison of both shock tunnels. In the previous aerodynamic test campaign of a blunt nose cone at JAXA’s HIEST shock tunnel, remarkable differences in the axial force coefficient between measurement and a numerical prediction were found. The first objective of the present study aims to investigate whether the discrepancy can be caused by poor testing accuracy or by the high-temperature real-gas effects. The second objective is uncertainty analysis of the employed two different force measurement techniques. The first one is optical tracking technique will be adopted in DLR-HEG, in which technique model movement is recorded with the high-speed video camera. The second one is the free-flight technique adopted in JAXA-HIEST, which technique uses accelerometers and miniature data recorders onboard in the model. In the script, the results measured with the free-flight technique in JAXA-HIEST was mainly described. Shock tunnel test campaign planned in near future in DLR-HEG will be also reported.

Item URL in elib:https://elib.dlr.de/130031/
Document Type:Conference or Workshop Item (Speech)
Title:FORCE MEASUREMENT COMPARISON OF BLUNT CONES IN HIGH-ENTHALPY SHOCK TUNNEL HEG AND HIEST
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tanno, Hideyukitanno.hideyuki (at) jaxa.jpUNSPECIFIED
Noguchi, YJAXAUNSPECIFIED
Ito, Katsuhiroito.katsuhiro (at) jaxa.jpUNSPECIFIED
Friedl, DamianDamian.Friedl (at) dlr.deUNSPECIFIED
Martinez Schramm, JanJan.Martinez (at) dlr.deUNSPECIFIED
Hannemann, KlausKlaus.Hannemann (at) dlr.deUNSPECIFIED
Date:30 September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Hypersonic, Aerodynamic, High-temperature Real-gas effect, Shock tunnel
Event Title:International Conference on Flight vehicles, Aerothermodynamics and Re-entry Missions and Engineering (FAR)
Event Location:Monopoli, Italien
Event Type:international Conference
Event Dates:30.9-3.10.2019
Organizer:ESA, ASI, CNES, DLR, UKSA) JAXA
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: Martinez Schramm, Jan
Deposited On:11 Nov 2019 15:09
Last Modified:11 Nov 2019 15:09

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