meshing stirred tank
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Hi Dear Friends
I strongly need your help I have a geometry that is stirred tank. I want to mesh periodic geometry. but I dont know how should I start? Please give your suggestions. I attached 4 pictures of my problem: 2 pictures are periodic domain that I want to mesh that. Thank you so much |
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Thank you so much for reply I can specify zone types but I cant mesh geometry. please help me about meshing strategy. |
and why can't you mesh your geometry?
Can you point out the warning or errors you got? |
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max skewness about 0.75 is good, limit is 0.9-0.95
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But answers is wrong and I know this is due to the bad quality of mesh. I've already got the correct answers by Another type of impeller by the same parameters in fluent. Its solution in each time step(10^-3) after every 30 iterations would converge but in this case the solution is converge after 80 iterations in each time step(time step is 10^-6). I attached 2 pictures of previous problem. Best Regards |
and what gives you a check Mesh?
But for sure your skewness is not guilty |
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Then you don't have problem with mesh.
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Best Regards |
skewness = 0 means perfekt
skewness = 1 means degenerate :rolleyes: .... http://aerojet.engr.ucdavis.edu/gambithelp/html/users_guide/ug0304.htm#gc_exmesh |
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But I'm not convinced |
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generate an awfull mesh with skewness greather than 0.97 Then import in fluent, and do a check mesh |
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no
the value of your skewness is low, which means your quality is good! Again: skewness ~0 means excellent! skewness ~1 means very poor! While you compare your both models,what is smallest cell size in both meshes. And how many cells they have. (cf your post #7) |
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THANKS IN ADVANCE |
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