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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

NATURAL CONVECTION IN AN OPEN CAVITY

Get access (open in a dialog) DOI: 10.1615/IHTC7.3240
pages 275-280

Sinopsis

Two-dimensional natural convection in an open air cavity of aspect ratio 1.0 at a Grashof number of 107 was investigated experimentally. The heat transfer rates along the inner hot vertical wall and ceiling were measured with a Wollaston prism schlieren interferometer. Velocity profiles near the hot inner vertical wall and the ceiling were measured with a Laser Doppler Anemometer. Streamline patterns within the open cavity were visualized by injecting cigarette smoke into the cavity. The measured local heat flux distribution curve along the inner hot vertical wall, except in the region close to the upper corner, agreed well with the distribution curve predicted for an isothermal vertical flat plate at the same Grashof number. The vertical velocity profiles along the inner hot vertical wall of the open cavity agreed well with the profiles predicted for an isothermal vertical flat plate suspended in an infinite medium.