Convection heat transfer in concentric annuli

被引：25

作者：

Dirker, J

Van der Vyver, H

Meyer, JP ^{[1
]}

机构：

[1] Univ Pretoria, Dept Mech & Aeronaut Engn, ZA-0002 Pretoria, South Africa

[2] Rand Afrikaans Univ, Dept Mech Engn, Johannesburg, South Africa

来源：

EXPERIMENTAL HEAT TRANSFER | 2004年 / 17卷 / 01期

关键词：

D O I：

10.1080/08916150490246528

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A comparative study is presented of literature involving convective heat transfer in annuli. It is shown that more research is needed in the area of convective heat transfer correlations in concentric annuli, as little agreement is found among existing correlations. A correlation predicting Nusselt numbers in annuli with ratios ranging from 1.7 to 3.2 was developed experimentally for water as fluid. The correlation has an accuracy of 3% in terms of experimental values for a Reynolds number range, based on the hydraulic diameter, of 4,000 to 30,000. The correlation was also compared to numerical predictions

引用

页码：19 / 29

页数：11

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