对流换热
普朗特数
对流
材料科学
传热
无量纲量
机械
热传导
丘吉尔-伯恩斯坦方程
强化传热
热力学
传热系数
薄膜温度
雷诺数
努塞尔数
物理
湍流
作者
Zeng-Yuan Guo,Deyu Li,B.X. Wang
标识
DOI:10.1016/s0017-9310(97)00272-x
摘要
An analog between convection and conduction with heat sources is made to have a further understanding of the mechanism of convective heat transfer. There are three ways to raise the strength of heat sources/convection terms, and consequently to enhance the heat transfer: (a) increasing Reynolds and/or Prandtl number, (b) increasing the fullness of dimensionless velocity and/or temperature profiles, (c) increasing the included angle between the dimensionless velocity and temperature gradient vectors. Some approaches of heat transfer enhancement are suggested based on such a novel concept of heat transfer enhancement.
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