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Test of a trail cryogenic balance in the ONERA T2 wind tunnelThe three component cryogenic balance designed and manufactured by the ONERA Large Means Directorate, was equipped with a light alloy schematic model and tested at the end of 1984 at the T2 wind tunnel in gusts at low temperatures up to 120 K. The tests pertained to the impact of the cryogenic conditions on the behavior of extensometric bridges while cooling the balance-model system mounted in the conditioning device and during gusts with models in the test section. A few tests with thermal disequilibrium between the flow and balance made it possible to confirm the proper operation in the range 120 to 300 K. This gust system showed that the balance, which was well compensated thermally, may be used in T2 with and without precooling. For any thermal gradient, the analysis was always performed with the same matrices and aerodynamic coefficients were obtained with the same precision.
Document ID
19870015052
Acquisition Source
Legacy CDMS
Document Type
Technical Translation (TT)
Authors
Blanchard, A.
(NASA Headquarters Washington, DC United States)
Seraudie, A.
(NASA Headquarters Washington, DC United States)
Plazanet, M.
(NASA Headquarters Washington, DC United States)
Payry, M. J.
(NASA Headquarters Washington, DC United States)
Date Acquired
September 5, 2013
Publication Date
July 1, 1987
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NASA-TT-20078
DERAT-TR-22/5007-DN
NAS 1.77:20078
Accession Number
87N24485
Funding Number(s)
CONTRACT_GRANT: NASW-4005
Distribution Limits
Public
Copyright
Public Use Permitted.
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