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研究了具有准逆流特征的六边形平板膜接触器流道内流体流动与传热特性。选择平板膜接触器内两块膜之间的流道和流道内的流体作为研究对象,建立相应的物理模型和表征流体流动与传热的控制方程,再通过计算流体软件fluent对控制方程进行离散和求解,得到计算单元内流体流动的f Re数、平均努塞尔数Nu_m,分析在不同的流道内不同流体的流动和传热特征。研究结果对用于液体空气加湿或除湿的准逆流平板膜接触器的性能评估和结构设计与优化提供参考。
The flow and heat transfer characteristics of hexagonal plate membrane contactors with quasi- The flow path between the two membranes in the flat membrane contactor and the fluid in the flow passage are selected as the research object, and the corresponding physical model and the control equation for characterizing the fluid flow and heat transfer are established. Then the control equations are discretized by the computational fluid software fluent And obtain the f Re number and the average Nusselt number Nu_m of the fluid flow in the calculation unit, to analyze the flow and heat transfer characteristics of different fluids in different flow paths. The results provide a reference for the performance evaluation and structural design and optimization of the quasi-countercurrent planar membrane contactor used for liquid air humidification or dehumidification.