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January 19, 2013, 04:30
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mesh check failed
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#1 |
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Member
Rajukiran Antham
Join Date: Dec 2012
Location: Sweden
Posts: 41
Rep Power: 13  |
hello everyone
i'm trying to study flow behaviour of an airfoil with a dimple on it ..i have done with the meshing .but, when i checked the mesh in fluent it says mesh check failed.. please help me with this.. |
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January 19, 2013, 08:39
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#2 |
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Member
Rajukiran Antham
Join Date: Dec 2012
Location: Sweden
Posts: 41
Rep Power: 13 |
when i do mesh check it shows as below
Domain Extents: x-coordinate: min (m) = -1.299804e-01, max (m) = 2.100000e-01 y-coordinate: min (m) = -1.300000e-01, max (m) = 1.300000e-01 Volume statistics: minimum volume (m3): 8.127845e-10 maximum volume (m3): 1.229440e-05 total volume (m3): 8.112471e-02 Face area statistics: WARNING: invalid or face with too small area exists. minimum face area (m2): 0.000000e+00 maximum face area (m2): 5.081937e-03 Checking mesh.......... WARNING: left-handed faces detected on zone 12: 350 right-handed, 2 left-handed........ WARNING: The mesh contains high aspect ratio quadrilateral, 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. ........ Done. WARNING: Mesh check failed. To get more detailed information about the mesh check failure increase the mesh check verbosity via the TUI command /mesh/check-verbosity. Fluent can also try to fix the mesh check problems via the TUI command /mesh/repair-improve/repair. Interrupting... Done. > Interrupting... Done. |
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January 19, 2013, 09:08
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#3 |
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Super Moderator
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probably you have some collasped/overlapping edges/blocks/faces. Mesh distriubtion is also not good.
Show some pics in vicinity of dimple. PS. By which formula you are calculating the depth of dimple and how much percent of boundary layer thickness? |
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January 19, 2013, 13:40
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#4 |
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Member
Rajukiran Antham
Join Date: Dec 2012
Location: Sweden
Posts: 41
Rep Power: 13 |
thanx for the reply FAR
here are some more images of the airfoil..how can i improve the mesh distributions?? plz suggest me |
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January 23, 2013, 22:53
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#6 |
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Member
Rajukiran Antham
Join Date: Dec 2012
Location: Sweden
Posts: 41
Rep Power: 13 |
thanx for the reply far
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January 24, 2013, 01:05
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#7 |
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New Member
davia
Join Date: Jan 2013
Location: china
Posts: 14
Rep Power: 13 |
 study it ，thanks
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