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风流人物

新虫 (初入文坛)

[求助] 用Fluent模拟软件,做采空区风流模拟时,检查网格时出错 已有1人参与

用Fluent模拟软件,做采空区风流模拟时,检查网格时出现:
Grid Check
Domain Extents:
   x-coordinate: min (m) = -5.335194e-015, max (m) = 2.130000e+002
   y-coordinate: min (m) = 0.000000e+000, max (m) = 2.200000e+002
   z-coordinate: min (m) = -3.776791e-015, max (m) = 2.400000e+001
Volume statistics:
   minimum volume (m3): 4.175059e-003
   maximum volume (m3): 1.687809e+000
     total volume (m3): 1.025040e+006
Face area statistics:
   minimum face area (m2): 1.639159e-002
   maximum face area (m2): 4.258350e+001
Checking number of nodes per cell.
Checking number of faces per cell.
Checking thread pointers.
Checking number of cells per face.
Checking face cells.
Checking bridge faces.
Checking right-handed cells.
Checking face handedness.
   Zone  23: 1501858 right-handed,     4 left-handed
   Zone   1: 52848 right-handed,     1 left-handed
Checking face node order.
Checking element type consistency.
Checking boundary types:
Checking face pairs.
Checking periodic boundaries.
Warning: The mesh contains very high aspect ratio hexahedral
         or polyhedral cells.
         The default algorithm used to compute the wall
         distance required by the turbulence models might
         produce wrong results in these cells.
         Please inspect the wall distance by displaying the
         contours of the 'Cell Wall Distance' at the
         boundaries. If you observe any irregularities we
         recommend the use of an alternative algorithm to
         correct the wall distance.
         Please select /solve/initialize/repair-wall-distance
         using the text user interface to switch to the
         alternative algorithm.
Checking node count.
Checking nosolve cell count.
Checking nosolve face count.
Checking face children.
Checking cell children.
Checking storage.
Done.
求大神分析下原因
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gyctju

金虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
警告并非错误,
只是提示你网格有长宽比非常大的,如果是因为画了边界层,忽略就是了,如果不是,也能计算,不过可能不好收敛。回去改下网格
2楼2015-06-17 21:32:19
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