Application of laser speckle photography in study of convective heat transfer

Yaozu Song; Zengyuan Guo; Manfred Groll; Rudi Kulenovic

doi:10.1117/12.163755

2 December 1993 Application of laser speckle photography in study of convective heat transfer

Yaozu Song, Zengyuan Guo, Manfred Groll, Rudi Kulenovic

Proceedings Volume 2005, Optical Diagnostics in Fluid and Thermal Flow; (1993) https://doi.org/10.1117/12.163755
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

In this paper, the application of laser speckle photography in study of convective heat transfer is presented in detail. Six kinds of experimental system of laser speckle photography and two methods of reconstruction of specklegram are proposed. The measurement principles and the formulas of experimental data processing for determination of 2D and axisymmetric temperature fields by using laser speckle photography are described. For illustration, the laser speckle photography has been used to study heat transfer of natural convection thermal boundary layer in a heated isothermal vertical flat plate and that between two heated vertical plates. The natural convection cooling of a heated vertical strip has also been studied by laser speckle photography.

Citation Download Citation

Yaozu Song, Zengyuan Guo, Manfred Groll, and Rudi Kulenovic "Application of laser speckle photography in study of convective heat transfer", Proc. SPIE 2005, Optical Diagnostics in Fluid and Thermal Flow, (2 December 1993); https://doi.org/10.1117/12.163755

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