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针对一台2K70型轴流式通风机从集流器进口到扩散器出口的内部的三维全流场做了定常的数值模拟。该模拟在整个计算区域使用非结构化网格,采用RNGκ-ε湍流模型和压力边界条件。在此基础上运用CFD软件进行定常的数值计算,模拟结果揭示了轴流式通风机内部全流场的一些基本特征,其结果可为通风机内部流动的优化提供参考。
A 2K70 axial flow ventilator was used to conduct constant numerical simulations of the internal three-dimensional full flow field from the inlet to the diffuser exit. The simulation uses unstructured grids throughout the computational area, using RNGκ-ε turbulence models and pressure boundary conditions. On this basis, the CFD software is used to carry out the steady numerical calculation. The simulation results reveal some basic characteristics of the full flow field inside the axial fan, and the results can provide reference for the optimization of the flow inside the fan.