ISSN Online: 2377-424X
International Heat Transfer Conference 4
AN INTERFEROMETRIC STUDY OF NATURAL CONVECTION ABOUT THE SURFACES OF A LONG RECTANGULAR BLOCK
Abstract
The effect of width and height on local natural convect Lon
Nusselt numbers about heated, long rectangular parallelopipeds in air were studied. Correlations were established for the base and vertical surfaces. For the vertical surface, width caused a decrease near the leading edge and an increase near the trailing edge compared with the theoretical solutions of Ostrach and Sparrow. The lower surface results, which generally agreed with Wagner's theoretical solution, showed substantial edge
effects. A variety of flow regimes may occur above the upper surface.