Local Heat Transfer Downstream of Abrupt Circular Channel Expansion
- 1 February 1970
- journal article
- Published by ASME International in Journal of Heat Transfer
- Vol. 92 (1) , 53-60
- https://doi.org/10.1115/1.3449645
Abstract
Experimental work was performed to determine local Nusselt numbers in the region beyond an abrupt expansion in a circular channel. Three expansion geometries, ratios of upstream-to-downstream diameter of 0.43, 0.54, and 0.82, were tested with air as the working fluid. Data are shown for Reynolds numbers from 4000 to 50,000–90,000 depending on geometry. Selected comparisons with previously published data for air and water are included.Keywords
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