Combined heat transfer and fluid dynamic measurements behind a backward-facing step
Conference
·
OSTI ID:6453155
Combined heat transfer and fluid dynamic measurements in a separated and reattaching boundary layer are presented. A constant heat flux surface behind a single-sided sudden expansion is used to obtain Stanton number profiles as a function of Reynolds number. Mean temperature and velocity profiles in log coordinates as well as near-wall skin friction and forward flow fraction data are compared. The Reynolds analogy poorly explains the complementary behavior of the Stanton and skin friction data, which show the maximum heat transfer rate at the mean reattachment point. Fluctuating skin friction and expanded temperature profiles demonstrate the importance of the near-wall region in controlling the heat transfer rate. 16 references.
- OSTI ID:
- 6453155
- Report Number(s):
- CONF-831111-
- Country of Publication:
- United States
- Language:
- English
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