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Numerical Modelling of Natural Draft Wet-Cooling Towers

机译:自然通风湿式冷却塔的数值模拟

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Numerical modelling of natural draft wet-cooling towers is considered in this paper. Development of a complete CFD model capable of predicting cooling tower performance under various operating conditions is presented. A step-by-step approach is employed, thus one-dimensional numerical modelling of counterfiow heat and mass exchangers is extensively presented first. This is followed by reduced order modelling of heat and mass transfer in cooling tower fills by means of proper orthogonal decomposition radial basis function networks. Then the approaches in modelling of droplet zones (rain and spray zones) are discussed. Finally the two and three-dimensional CFD models are discussed.
机译:本文考虑了自然通风湿式冷却塔的数值模拟。提出了一个完整的CFD模型的开发,该模型能够预测各种运行条件下的冷却塔性能。由于采用了逐步的方法,因此首先广泛介绍了逆流换热器和传质器的一维数值模型。然后,通过适当的正交分解径向基函数网络,对冷却塔填料中的传热和传质进行降阶建模。然后讨论了液滴区域(雨水和喷雾区域)建模的方法。最后讨论了二维和三维CFD模型。

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