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在空间模拟运动的喷管射流,压力入口为喷管入口7MPa和1800K,计算域四周为大气压力出口,运动速度为50m/s,采用 realizable k-e模型,标准壁面函数,混合初始化方法,time step采用1e-5。结果如图。求助问题可能出现在哪里呢?
不太懂。请问是2D 还是3D ? 使用了对称轴? 推测原因: 1.上下边界距离引起的压差? 2.湍流模型不行?