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#1 |
Senior Member
JSM
Join Date: Mar 2009
Location: India
Posts: 192
Rep Power: 20 ![]() |
Hi,
In ICEM CFD, how to avoid the pyramid elements generation while making prism layers. There is any best practices are available? Kindly give your suggestions.
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#3 |
Senior Member
JSM
Join Date: Mar 2009
Location: India
Posts: 192
Rep Power: 20 ![]() |
Hi,
Thanks for your suggestion.
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#4 |
Senior Member
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47 ![]() ![]() |
I did intend to get to this, but I am traveling now and my internet connection is not good enough to post the ppt...
I will try later this week. Simon |
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#5 |
Senior Member
JSM
Join Date: Mar 2009
Location: India
Posts: 192
Rep Power: 20 ![]() |
Hi Simon,
Thanks for your efforts. Please post your presentation at your convenient time.
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#6 |
New Member
Alex
Join Date: Oct 2009
Posts: 6
Rep Power: 16 ![]() |
JSM,
this might help you.... Mesh -> Global Mesh Setup -> Prism Meshing Parameter -> Advanced Prism Meshing Parameters -> Turn Off : Stop Columns, Refine Prism Boundary Turn On : Auto Reduction. This setup will stop your prism layer before it intends to generate a pyramid element. You might not get the desired prism height. Alex |
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#7 | |
New Member
Alex
Join Date: Oct 2009
Posts: 6
Rep Power: 16 ![]() |
Quote:
if you have a very complex geometry and try to raise one single prism layer (with the total height to afterwards split it) the tetrahedrals sometimes can not be adequately acomodated. With this approach you smash the tetrahedrals by a certain amount in just one single steps (on the step by step approach the tetra are smoothed during the proccess). For complex geometries this can bring you some problems. Regards, Alex |
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#8 |
Senior Member
JSM
Join Date: Mar 2009
Location: India
Posts: 192
Rep Power: 20 ![]() |
Hi Alex,
Thanks for your suggestion ![]() FYI : Simon will also post one presentation for prism mesh generation.
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With regards, JSM |
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#9 |
Senior Member
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
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Sorry for the long delay…
![]() The ppt was originally made for a customer using a combination of Fluent and CFD++, neither of which like pyramids very much, on models that were typically hundreds of millions of elements (they didn't want to just "try things"). Other solvers, such as CFX, would prefer pyramids to poor quality prisms, so this may not be the best settings for everyone... Which is why they are not the hard wired defaults... ICEM CFD is all about flexibility. There are also some general prism tips in there. |
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#10 |
Senior Member
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Hi PSYMN
I want to write mesh for CFD++. Would you please guide me to set the boundary conditions for CFD++ and then output the mesh. Last edited by Far; April 5, 2012 at 05:48. |
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#11 |
New Member
SANTOSH
Join Date: Jan 2012
Posts: 10
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hi
am trying to generate tri/prism on my geometry which ha V shape , wen i try to generate prism by icem cfd it generates penetrating elements and pyramids, can anybody tell me how to avoid penetrating elements between V ( V angle 73 deg sides 80mm, 65mm and need 30mm prism height) |
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#13 |
Senior Member
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
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Another option (depending on your version) would be to go into Prism advanced settings and click the option for PrismV10... I think that was sorted out in later versions, but I forget when exactly.
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#14 | |
New Member
Gopal Shinde
Join Date: Sep 2009
Location: Pune, India
Posts: 28
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Quote:
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#15 |
Senior Member
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#16 |
Senior Member
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
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@ Shinde Gopal,
That pdf was from 2009... But I guess it is still relevant. That whole FTP site was taken down. We have switched to Google. Here is the google link. https://docs.google.com/file/d/0ByIL...it?usp=sharing
__________________
----------------------------------------- Please help guide development at ANSYS by filling in these surveys Public ANSYS ICEM CFD Users Survey This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)... CFD Online Users Survey |
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#17 | |
New Member
Gopal Shinde
Join Date: Sep 2009
Location: Pune, India
Posts: 28
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Thanks a lot
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#18 | |
New Member
Gopal Shinde
Join Date: Sep 2009
Location: Pune, India
Posts: 28
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Quote:
Thanks alot |
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#19 |
New Member
Gopal Shinde
Join Date: Sep 2009
Location: Pune, India
Posts: 28
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@ Admin : Please delete this post
Last edited by shinde.gopal; February 11, 2013 at 07:29. |
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#20 |
New Member
Hari Krishnan Kumar
Join Date: Sep 2010
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