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尝试了下较长河道用浅水方程求解器计算，预设了所有网格河底高程一致，在计算后发现观测点水位高度一致处于波动状态，请问这种情况正常吗？
本来想说试试加深水槽。 静水流深嘛，一看是浅水方程…… 如果边界条件设定为带反射的，那就应该不停波动。如果是自由边界，不停波动不正常
