actran计算出现如下错误，这是怎么回事？该怎么解决？

1. fluent输出engsight gold 格式文件，icfd计算过程中出现警告：the varible velocity_magnitude does not refer to a known field name. the associated values will therefore not be read/considered2.ICFD结束以后，计算actran出现如下错误：one modal suface in contact with modal basis 6 is subdivided into serveal sub-surfaces. this is not supported and result will most likely be incorrected

1. 应该输出三个方向速度结果；2. 管道模态边界的面网格有问题，你可以参考消声器算例的网格模型。