| 水平多孔窗内蒸发现象与制冷效应的二维数值模拟 |
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| 引用本文： | 张浙,刘伟,李开勤,王崇琦.水平多孔窗内蒸发现象与制冷效应的二维数值模拟[J].华中科技大学学报(自然科学版),1993(4). |
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| 作者姓名： | 张浙 刘伟 李开勤 王崇琦 |
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| 作者单位： | 华中理工大学动力工程系
(张浙,刘伟,李开勤),华中理工大学动力工程系(王崇琦) |
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| 摘 要： | 从连续介质力学的观点出发,建立了描述非饱和多孔介质内部热质传递现象的二维稳态模型.并用此模型对水平多孔窗的传热传质过程进行了数值模拟,得到了不同运行工况下的床内各量的场分布及其蒸发制冷量分布,从而揭示了环境参数与多孔窗内部热质传递及其换热性能之间的内在联系.
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| 关 键 词： | 传热传质 多孔窗 多孔介质 非饱和 蒸发制冷 |
Numerical Simulation of Transport Phenomena and Evaporative Refrigeration in a Horizontal Porous Window |
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| Zhang Zhe Liu Wei Li Kaiqing Wang Chongqi.Numerical Simulation of Transport Phenomena and Evaporative Refrigeration in a Horizontal Porous Window[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1993(4). |
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| Authors: | Zhang Zhe Liu Wei Li Kaiqing Wang Chongqi |
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| Institution: | Zhang Zhe Liu Wei Li Kaiqing Wang Chongqi |
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| Abstract: | A two-dimensional mathematical model is developed for describing the heat and mass transfer through unsaturated porous media. The "SIMPLE" method is adopted to solve the governing equations for the horizontal porous window model. The field distribution of variables in the porous bed and the heat flux between the porous window and environment under different working conditions are obtained by numerical simulation. The results show that the mathematical model and the numerical method are feasible and the heat carried out of the room by the porous window is able to meet partial air-conditioning requirements. The relation between the environment parameters and heat-mass transport in the porous bed and the heat exchange capability of the porous window are also analyzed. |
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| Keywords: | heat and mass transfer porous window porous media unsaturation evaporative refrigeration |
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