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

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Old   February 25, 2016, 07:54
Default How To Improve Pre Mesh Quality In O grid Based Double Pipe Cylinder
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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.
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Old   February 26, 2016, 05:13
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Originally Posted by Shomaz ul Haq View Post
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
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Old   February 26, 2016, 12:07
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I guess O-grid has not been generated successfully !
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Old   February 27, 2016, 02:00
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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.
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Old   February 27, 2016, 06:03
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I have managed to improve the quality for Criterion angle by including another O grid inside.
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Old   January 15, 2018, 06:58
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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)...


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Old   January 15, 2018, 07:38
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Originally Posted by eeLio View Post
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.
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