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Effect of uniform suction on laminar filmwise condensation on a finite-size horizontal flat surface in a porous medium

机译:均匀抽吸对多孔介质中有限尺寸水平平面上层流膜状冷凝的影响

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摘要

The theoretical analysis of filmwise condensation outside a finite-size horizontal flat surface embedded in a porous medium filled with a dry saturated vapor has been solved by a boundary layer treatment. The Newton-Raphson scheme was employed to solve the finite-size horizontal flat plate in porous medium. Results turns out that the average Nusselt number for condensation heat transfer is expressed in terms of Darcy number, Jakob number, film liquid Prandtl number, Darcy-modified Rayleigh number and the parameter of suction, as well as are given for the condensate layer thickness profiles.
机译:通过边界层处理解决了在有限大小的水平平坦表面(嵌入到充满干燥的饱和蒸汽的多孔介质中)外部的膜状冷凝的理论分析。采用牛顿-拉夫森法求解多孔介质中的有限尺寸水平平板。结果表明,冷凝传热的平均努塞尔数用达西数,雅各布数,膜液体普朗特数,达西修饰的瑞利数和吸力参数表示,并给出冷凝层厚度分布图。

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