采用连续方法研究了回旋区的形成过程及风速对其形状和大小的影响.使用欧拉模型计算气固两相的质量和动量守恒方程,使用Realizable k-e(e为湍流耗散率)模型计算湍流流动,使用标准壁面函数处理近壁区域,模拟了回旋区的形成与稳定的过程,比较了不同的风速条件下空腔的形状大小的变化.结果表明:随着风速的增加,所形成的空腔显著增大.
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