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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Sandwich holography for simultaneous temperature visualization and convective heat transport measurement beneath a heated horizontal plate

Get access (open in a dialog) DOI: 10.1615/IHTC12.1970
6 pages

Аннотация

In this work a particular holographic interferometry technique (sandwich holography) is used as a tool in flow visualisation. The remarkable feature of the proposed method is that both a map of temperature field and a measurement of the temperature gradient can be provided simultaneously. Data reduction is performed avoiding numerical derivation, which adds errors to the measured data, as well as time and memory consuming twodimensional image processing (e.g. phase extraction and phase unwrapping procedures). The technique was tested in an investigation of convective heat transfer beneath a heated horizontal plate in air.