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物理模型是一个带有出口的立方体容器(无进口),立方体内充满空气并且要求立方体容器内的压力始终保持在0.5mpa(即在整个模拟过程中立方体容器内的压力始终为0.5mpa),请问怎样设置才能实现压力始终恒定这个要求?
设初始压强和出口边界压强都为目标值,然后,内部气压低了,就会从出口回流进来空间。出口是恒压的,出口和内部是联通的,就能保证内部恒压。