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Comparison of Force Measurements in the HEG and T4 Shock Tunnels

Beck, W.H. and Weiland, M.K.H. and Mee, D. J. and Paull, A. (1999) Comparison of Force Measurements in the HEG and T4 Shock Tunnels. Third European Symposium on Aerothermodynamics for Space Vehicles, Noordwijk/NL, 24.-26. November 1998.

Full text not available from this repository.

Abstract

The stress-wave force balance, which was developed in the T4 facility, was tested in the HEG shock tunnel. This balance is able to measure forces in sub-millisecond test times. In order to obtain a direct comparison the same model and balance were used in both facilities. The drag on a sharp cone with a 15 degree half angle was investigated for different test conditions which covered a range of 60 to 380 N total drag in T4 and 50 to 105 N in HEG. The measured drag was compared to theoretically predicted results and was found to be within the measurement accuracy of about 10% in T4. In HEG the level was somewhat higher at about 12%. It is concluded that the force balance is also capable of measuring forces in HEG to a similar level of accuracy

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Comparison of Force Measurements in the HEG and T4 Shock Tunnels
Authors:
AuthorsInstitution or Email of Authors
Beck, W.H.UNSPECIFIED
Weiland, M.K.H.UNSPECIFIED
Mee, D. J.UNSPECIFIED
Paull, A.UNSPECIFIED
Date:1999
Status:Published
Keywords:Shock tunnel, Force measurements, Stress-wave force balance, Cone
Event Title:Third European Symposium on Aerothermodynamics for Space Vehicles, Noordwijk/NL, 24.-26. November 1998
Organizer:ESTEC
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:23

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