How To Improve Pre Mesh Quality In O grid Based Double Pipe Cylinder
 

Dear all,

Hi. Hope all are well. I am facing a problem of bad quality for Criterion Angle. I am using O grid. How can I improve quality? I am attaching jpeg. Would be grateful. Thanks.

attach some clear picture of cross-sectional view and blocking edges

I guess O-grid has not been generated successfully !

Thank you attiquejavaid08. I have attached image of cross section with blocking edges. Please help me in improving quality. Thank you Far. Far why do you think O grid is not successful? And if something is wrong with the O grid how can I improve it? Would be grateful.

I have managed to improve the quality for Criterion angle by including another O grid inside. :)

Dear Shomaz,

I am facing the same problem,

Did you manage to solve your issue? Although you improve your quality with another o-grid you still have "bad elements" in terms of "angle" around the four corners?

I was thinking that maybe there is a way to change the type of mesh of the o-grid (but still mostly hexa elements)...


Best

eelio

In the small circle inside when you do an O grid you associate and use spline to make the edges in the shape of a circle. But for the O grid that goes inside you keep it as a square without linear or spline splits and thus avoiding making it circular. that will improve the corners.