[yaseen wsu]

hello every one
I have a problem in meshing my geometry, because skewness reaches 0.99, critical location for this is boundary between two parts of geometry which is (tetra and hexa) mesh, I can create hexa mesh for upper part by all methods (mulizone, swipp..) how can I improve skewness, also I used function size but only reach 0.97. thanks
http://www.cfd-online.com/Forums/att...1&d=1458722464
http://www.cfd-online.com/Forums/att...1&d=1458722476
http://www.cfd-online.com/Forums/att...1&d=1458722490

[oozcan]

could you please give more concrete .jpeg? and Can I see your mesh-tree more detail?

if you share all of this? I would be helping you out .

Kind Regards,

[yaseen wsu]

thanks for your reply
I tried to reduce skewness by sizing function to 0.938 but till now very high see attached photo
http://www.cfd-online.com/Forums/att...1&d=1463222335
http://www.cfd-online.com/Forums/att...1&d=1463222342
http://www.cfd-online.com/Forums/att...1&d=1463222368
http://www.cfd-online.com/Forums/att...1&d=1463222384
http://www.cfd-online.com/Forums/att...1&d=1463222400

[oozcan]

I couldnt see all attachment photos. I do not know but,

Actually that skewness you have attained is a quite bit enough to solve your model.

I could not comment your meshing as couldnt see your photos,if any meshing has mapped face, might as well remove it, I prefer and use it when model has two or multiple part of bodies are contacted eachother,that is, if gap or overlapping occur in two parts then you should use mapped face meshing in contacted surface or faces

Tetra meshing is most prefered choice in most cases of problems.Relevance factor is revelant to your model sensitivity and it causes time-consuming and not-economical in solving all models.

Better relevance or accuracy of solving your problem would be made tetra meshing but for hexa.Hexa leads to minimal nodes or cells and then, relevance factor would be incereased by your choice (if skewness,orthogonal,aspect ratio are enough value )


Kind Regards,