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采用改进的雷诺应力输运模型加入到FLUENT软件平台上,模拟旋风分离器环形空间的三维强旋湍流流场分布,重点分析环形空间流场的分布特征。模拟值与实验值基本吻合,说明改进的雷诺应力输运模型可以对环形空间流场分布有较好的预报效果。结果表明:环形空间流场呈显非轴对称性分布,进口处存在短路流。
The improved Reynolds stress transport model was added to the FLUENT software platform to simulate the three-dimensional strong turbulent flow field distribution in the annular space of the cyclone. The distribution characteristics of the flow field in the annular space were analyzed. The simulated values are in good agreement with the experimental ones, which shows that the improved Reynolds stress transport model can predict the flow field distribution in the annular space well. The results show that the flow field in the annular space is obviously non-axisymmetric distribution, and there is short-circuit flow at the inlet.