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Proceedings Paper

Measurement of convective heat-transfer coefficients on a wind tunnel model by passive and stimulated infrared thermograpy
Author(s): Daniel L. Balageas; Daniel M. Boscher; Alain A. Deom
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Paper Abstract

Research conducted at ONERA to make quantitative infrared thermography operational and applicable to any 3D model is discussed. The problems of precise thermometry using this technique are considered, and the methodological and hardware choices made to obtain quantitative thermograms are described. The problem of determining the convective flows once the unsteady temperatures are known is addressed for two kinds of methods: classical passive thermography, in which only the heating due to convection is used, and active, or stimulated, thermography, in which the heat-transfer coefficients are calculated directly from the additional heating of the model by a radiation source, applied for short periods during the test.

Paper Details

Date Published: 1 November 1990
PDF: 19 pages
Proc. SPIE 1341, Infrared Technology XVI, (1 November 1990); doi: 10.1117/12.23107
Show Author Affiliations
Daniel L. Balageas, ONERA (France)
Daniel M. Boscher, ONERA (France)
Alain A. Deom, ONERA (France)

Published in SPIE Proceedings Vol. 1341:
Infrared Technology XVI
Irving J. Spiro, Editor(s)

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