约束两端面或者外侧线,只要约束包含有Z方向(深度方向),就会显示The value of UZ at node... is....It is greater than the current limit of 1000000(which can be reset on the NCNV command).This generally indicates rigid body motion as a result of an unconstrained model. Verify that your model is properly constrained.只约束了顺水流方向,又得不到结果。请问该怎么设置边界条件才对?