qiqiang 发表于 2012-3-10 09:54

求教:怎么用nastran做双层壳壳间充液流固耦合问题

各位大虾:
       最近在利用nastran做流固耦合问题,具体描述如下:双层圆柱壳壳间充液问题,我用acmodl卡片时,f06计算文件总会出现如下提示警告信息:
*** USER WARNING MESSAGE 6151 (GP5B)
   ACOUSTIC COUPLING
   MATRIX WILL NOT BE CREATED FOR FACE =    9730    9878    9879    9731       0       0       0       0
   OF ELEMENT ID =   13033 ,BECAUSE ITS FLUID GRID POINTS DO NOT HAVE CORRESPONDING STRUCTURAL GRID
   POINTS.
   USER ACTION: IF COUPLING IS DESIRED, THEN CHECK GRID POINT DATA.
*** USER WARNING MESSAGE 6151 (GP5B)
   ACOUSTIC COUPLING
   MATRIX WILL NOT BE CREATED FOR FACE =    9731    9732    9769    9768       0       0       0       0
   OF ELEMENT ID =   13034 ,BECAUSE ITS FLUID GRID POINTS DO NOT HAVE CORRESPONDING STRUCTURAL GRID
   POINTS.
   USER ACTION: IF COUPLING IS DESIRED, THEN CHECK GRID POINT DATA.
*** USER WARNING MESSAGE 6151 (GP5B)
   ACOUSTIC COUPLING
   MATRIX WILL NOT BE CREATED FOR FACE =    9732    9733    9770    9769       0       0       0       0
   OF ELEMENT ID =   13035 ,BECAUSE ITS FLUID GRID POINTS DO NOT HAVE CORRESPONDING STRUCTURAL GRID
   POINTS.
   USER ACTION: IF COUPLING IS DESIRED, THEN CHECK GRID POINT DATA.
………………………………………………………………
请指教!这到底是什么原因,能具体解释一下吗?该怎么处理

或者能教一教怎样处理双层壳壳间充液问题

qiqiang 发表于 2012-3-13 10:05

大侠们,求救啊
页: [1]
查看完整版本: 求教:怎么用nastran做双层壳壳间充液流固耦合问题