A correlation of maximum turbulent heat transfer coefficient in reattachment flow region

Terukazu Ota; Hideya Nishiyama

doi:10.1016/0017-9310(87)90048-2

A correlation of maximum turbulent heat transfer coefficient in reattachment flow region

Terukazu Ota, Hideya Nishiyama

Creative Flow Research Division

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

A correlation of the maximum turbulent heat or mass transfer coefficient in the reattachment region of separated flow is proposed based on surveying thoroughly previous data and also on conducting heat transfer measurements. A newly proposed formula is expressed by h_Rl λ=0.192( U_sl v)^0.665 Pr^{1 3} in which h_R, l, U_s and Pr denote the maximum heat transfer coefficient, the streamwise distance from the separation point to the reattachment point, the velocity along the separated shear layer and Prandtl number, respectively. In the case of mass transfer, Pr and λ are to be replaced by Sc and D, which are the Schmidt number and diffusion coefficient, respectively. That formula is found to be valid in a range of 0.7 ≤ Pr ≤ 9, 0.6 ≤ Sc ≤ 2500 and 8 × 10³ ≤ U_sl/v ≤ 2 × 10⁶.

Original language	English
Pages (from-to)	1193-1200
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	30
Issue number	6
DOIs	https://doi.org/10.1016/0017-9310(87)90048-2
Publication status	Published - 1987 Jun

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/0017-9310(87)90048-2

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A correlation of maximum turbulent heat transfer coefficient in reattachment flow region

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