Natural Convection Cooling of a Heated Vertical Strip Embedded in a Plate

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 two dimensional 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 on 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. The experimental results are in good agreement with recognized theoretical analyses.

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“…Finally, the heat transfer of natural convection adjacent to heated vertical tube is being investigated by us. 8. CONCUSIONS…”

Section: Imaging Lens Imagementioning

confidence: 99%

<title>Application of laser speckle photography in study of convective heat transfer</title>

et al. 1993

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“…Some results were compared with experimental data of Song et al [3] Some results were compared with experimental data of Song et al [3] …”

Section: Introductionmentioning

confidence: 99%

Numerical study of natural convection on horizontal strips embedded in an vertical adiabatic substrate

Zhang

1996

J. of Therm. Sci.

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N u m e r i c a l S t u d y o f N a t u r a l C o n v e c t i o n o n H o r i z o n t a l S t r i p s E m b e d d e d in an V e r t i c a l A d i a b a t i c S u b s t r a t e X i a o -B o W u Z e n g -Y u a n G u oA full solution of two-dimensional Navier-Stokes and energy equation was conducted numerically to analyze the natural convection of the horizontal strip with an adiabatic substrate. The main features of such convection are: (i) the leading and trailing edge effect, (ii) the non-boundary layer effect, and (iii) the side edge effect. The results are compared with the boundary layer theory and experimental data.

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