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June 12, 2012, 01:12 |
single-phase boiling
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#1 |
New Member
reza hemmat
Join Date: Jan 2012
Posts: 24
Rep Power: 14 |
hi guys
I am simluating single-phase boiling in engine coolinhg passages via CFD software AVL Fire, but it diverges alot. I wanna to know what's the problem???I used a nice mesh (tet) , what do u think?what about turbulence parameters?I use turbulence lenght scale=0.001 m and turbulence kinetik energy 1 m2/s3 . I use k-e model and upwind scheme to discretise the all equations. please help me . if have any cooment tell me . thanks in advance best wishes |
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July 13, 2012, 13:47 |
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#2 |
New Member
Join Date: Jun 2012
Posts: 6
Rep Power: 13 |
first check your mesh using check info option. check for negative cells, volumes, skewness, partially negative cells, twisted faces. if u find any fault then u have to smoothen ur mesh or worst case redo whole thing
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