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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical study of heat and mass transfer in mixed convection inside a vertical channel with a binary liquid film streaming in one of its heated walls
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Numerical study of heat and mass transfer in mixed convection inside a vertical channel with a binary liquid film streaming in one of its heated walls

机译：垂直通道内混合对流中传热和传质的数值研究，其中一个加热壁中有二元液膜流过

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摘要

We consider a thin binary liquid film streaming on the internal face of one of the two parallel plates. The wet plate is submitted to a constant to a constant and uniform thermal flow while the second is adiabatic. The presented simulations concern a vertical channel whose dry wall is adiabatic and two binary mixtures: ethanol-water and ethylene glycol-water. We show the film thickness importance and mixture composition in the mass and thermal transfers. For the ethanol-water liquid mixture, the results seem to be foreseeable while it is different for the second mixture (ethylene glycol-water). We show, for example , that for a particular ethylene glycol-water mixture concentration at the canal entry, it is possible to evaporate in the same conditions more water than if the film at the entry was pure water only.
机译：我们考虑在两个平行板之一的内表面上流淌着一层薄薄的二元液膜。湿板处于恒定且恒定且均匀的热流中，而第二个则是绝热的。提出的模拟涉及一个垂直通道，其干壁是绝热的，并且有两种二元混合物：乙醇-水和乙二醇-水。我们展示了膜厚的重要性以及混合物在传质和传热中的组成。对于乙醇-水液体混合物，结果似乎是可以预见的，而对于第二种混合物（乙二醇-水）则不同。例如，我们表明，对于运河入口处特定的乙二醇-水混合物浓度，与在入口处的膜仅是纯净水相比，在相同条件下蒸发的水可能更多。

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