Robust methodology for determination of heat transfer coefficient distribution in convection

被引：4

作者：

Xiao, Bowang ^{[1
]}

Wang, Qigui ^{[2
]}

Wang, Gang ^{[1
]}

Sisson, Richard D., Jr. ^{[1
]}

Rong, Yiming ^{[1
]}

机构：

[1] Worcester Polytech Inst, Worcester, MA 01609 USA

[2] Gen Motor Co, Mat Technol, Global Powertrain Engn, Pontiac, MI 48340 USA

来源：

APPLIED THERMAL ENGINEERING | 2010年 / 30卷 / 17-18期

关键词：

Heat transfer coefficient; Convection; Quenching; Finite element analysis; CFD; QUENCHING PROCESS; RESIDUAL-STRESS; OPTIMIZATION; DISTORTION;

D O I：

10.1016/j.applthermaleng.2010.08.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

To predict the microstructures, residual stresses and distortions in the heat treated metal components, it is important to accurately know the heat transfer coefficients (HTCs) between the hot work piece and cooling media. In this paper, a new method is presented to accurately determine the node-based HTC distribution by coupling computational fluid dynamics (CFD) with optimal weight functions and scale factors. With this new method, the predicted temperature profile of the work piece during quenching (rapid cooling) is in excellent agreement with experimental measurements. This new method can be also applied to accurately predict convection heat transfer in thermal equipment such as heat exchangers and refrigerators, building thermal design and other heat transfer related situations. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2815 / 2821

页数：7

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