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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical study of the evaporation by mixed convection of ethanol in partially heated plate along a vertical channel
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Numerical study of the evaporation by mixed convection of ethanol in partially heated plate along a vertical channel

机译：部分加热板沿垂直通道的乙醇混合对流蒸发的数值研究

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The purpose of this study is to analyze the combined heat and mass transfer in the evaporation of ethanol liquid film by mixed convection in a finite vertical channel. The liquid film falls along a left plate which is externally submitted to partially heat flux while the right plate is dry wall and is kept thermally insulated. The partially heated plate is divided into N equal regions which are alternately heated and insulated zones. Both liquid and gas stream are approached by two coupled laminar boundary layer. An implicit finite difference method is employed to solve the coupled governing equations for liquid film and gas flow together with the interfacial matching conditions. The effect of the number of heated zones and their positions on the flow and on the heat and mass transfer is analyzed.
机译：这项研究的目的是分析有限垂直通道内混合对流作用下乙醇液膜蒸发中的传热和传质的结合。液膜沿着左板下落，该左板在外部受到部分热通量，而右板是干壁并保持隔热。将部分加热的板划分为N个相等的区域，分别交替加热和隔离区域。液体和气体流都通过两个耦合的层流边界层进入。采用隐式有限差分法求解液膜和气体的耦合控制方程及界面匹配条件。分析了加热区的数量及其位置对流动以及传热和传质的影响。

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