TRANSIENT FREE-CONVECTIVE FLOW IN A VERTICAL CHANNEL DUE TO SYMMETRIC HEATING

B.K. JHA; A.K. SINGH; H.S. TAKHAR

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TRANSIENT FREE-CONVECTIVE FLOW IN A VERTICAL CHANNEL DUE TO SYMMETRIC HEATING

机译：对称加热导致垂直通道中的瞬态自由对流

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This paper presents a closed form solution for a transient free convective flow of a viscous and incompressible fluid in a vertical channel due to symmetric heating of channel walls. The Laplace transform technique has been used to obtain the expression for the velocity and temperature fields by solving the governing differential equations. The influence of the physical parameters on the velocity field, skin-friction, rate of heat transfer and volumetric flux of the fluid are carefully analysed. A correlation between the steady state time and the Prandtl number has been developed. It is observed that the nature of correlation is linear when the Prandtl number is greater than one while cubic for the Prandtl number is less than one.

机译：本文提出了一种封闭形式的解决方案，用于在垂直通道中由于通道壁的对称加热而产生的粘性和不可压缩流体的瞬态自由对流。拉普拉斯变换技术已用于通过求解控制微分方程来获得速度和温度场的表达式。仔细分析了物理参数对速度场，皮肤摩擦，传热速率和流体体积通量的影响。已经开发出稳态时间与普朗特数之间的相关性。可以观察到，当Prandtl数大于1时，相关性是线性的，而Prandtl数的立方小于1。

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来源
《Applied Mechanics and Engineering》 |2003年第3期|p.497-502|共6页
作者
B.K. JHA; A.K. SINGH; H.S. TAKHAR;
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作者单位

Department of Mathematics, Banaras Hindu University Varanasi ― 221005, INDIA;

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原文格式 PDF
正文语种 eng
中图分类一般工业技术;
关键词
free convection; symmetric heating; laplace transform; prandtl number;

机译：自由对流;对称加热;拉普拉斯变换;普朗特数;

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TRANSIENT FREE-CONVECTIVE FLOW IN A VERTICAL CHANNEL DUE TO SYMMETRIC HEATING

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