发展了一种基于双向耦合的直接数值模拟方法,研究了两相湍流射流中离散颗粒对气相射流的影响.流场采用高分辨率的算法直接耦合求解,颗粒相采用拉格朗日方法跟踪.结果表明不同Stokes数的颗粒对射流的影响不同.所有的颗粒都降低了射流速度半宽,但对流向平均速度剖面的影响比较复杂.Stokes数为0.01和50的颗粒降低了横向平均速度,使得湍流强度剖面变的更宽更低;而Stokes数为1的颗粒则增加了横向平均速度,降低了湍流强度.
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