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ISSN Online: 2377-424X

International Heat Transfer Conference 5
September, 3-7, 1974, Tokyo, Japan

THE EFFECTS OF SURFACE ROUGHNESS IN NOZZLES ON HEAT TRANSFER

Get access (open in a dialog) DOI: 10.1615/IHTC5.2120
pages 234-238

摘要

This paper presents results of an experimental and an analytical investigation of accerlerated flow in a nozzle whose surface has been roughened. Agreement between theory and experiment is good. Ste are found to increase by 35 precent over Ste for smooth walls. A small gain in heat transfer is offset by severe increase in wall shear stress. No laminarization was noted for rough surfaces.