Spreading Resistance of Isoflux Rectangles and Strips on Compound Flux Channels
Spreading Resistance of Isoflux Rectangles and Strips on Compound Flux Channels
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DOI：
10.2514/2.6467
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发表时间：
1998-01
影响因子：
2.1
通讯作者：
M. Yovanovich;Y. Muzychka;J. Culham
中科院分区：
文献类型：
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作者：
M. Yovanovich;Y. Muzychka;J. Culham
本文给出了等熵矩形热源在一个边界上有对流冷却或传导冷却的双层矩形换热通道上的扩散阻力的一般表达式。一般表达式取决于几个无量纲的几何和热参数。本文给出了两层各向同性弹性体和半弹性体系统的二维和三维扩展阻力的表达式。本文讨论了条形源上的热辐射分布对二维扩展电阻的影响。表中的值为三个eux分布，真正的等温带，和相关的nonisoe ux，非等温问题。对于窄带，eux分布的影响变得相对较小。本文讨论了等离子体方波源在各向同性方波管上的无因次扩展阻力，并给出了相关方程。本文给出了各向同性半空间上等熵矩形源的无量纲传播阻力的封闭表达式。
The general expression for the spreading resistance of an isoe ux, rectangular heat source on a two-layer rectangular e ux channel with convective or conductive cooling at one boundary is presented. The general expression depends on several dimensionless geometric and thermal parameters. Expressions are given for some two- and three-dimensional spreading resistances for two-layer and isotropic e nite and semi-ine nite systems. The effect of heat e ux distribution over strip sources on two-dimensional spreading resistances is discussed. Tabulated values are presented for three e ux distributions, the true isothermal strip, and a related nonisoe ux, nonisothermal problem. For narrow strips, the effect of the e ux distribution becomes relatively small. The dimensionless spreading resistance for an isoe ux square source on an isotropic square e ux tube is discussed, and a correlation equation is reported. The closed-form expression for the dimensionless spreading resistance for an isoe ux rectangular source on an isotropic half-space is given.