|
[Sponsors] |
Does Ansa have a "volume skew" criterion equivalent? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
May 13, 2022, 14:03 |
Does Ansa have a "volume skew" criterion equivalent?
|
#1 |
New Member
Join Date: May 2022
Posts: 2
Rep Power: 0 |
Hi,
I am trying to reduce the number of tet elements that fail a certain criterion in Hypermesh (about 1% of my mesh). This criterion is called "volume skew" (with a value of 0.9) in hypermesh, but I am trying to modify the mesh in Ansa, so I need to be able to select the equivalent of what this criterion is in Ansa. This is the hypermesh definition of "volume skew" https://ibb.co/VvQFZBc The first thing I tried in Ansa was to use "Skewness" for solids, but looking at the description below, you can see that it seems different, and it gave me wrong/opposite results when I tried to fix the elements. https://ibb.co/ZGj1Jjb. Essentially, the more elements I fixed in Ansa using this criterion, the more failed elements I got in hypermesh when re-checking, making my mesh worse. The second thing I tried in Ansa was to use "h-ratio" for solids https://ibb.co/KjWrKNN, but when I use a value of 0.9, the entire mesh is highlighted as failing the criterion, instead of just a portion of them (should be about 1% according to hypermesh). Any help is appreciated. Thanks, Jazmine |
|
May 14, 2022, 13:07 |
|
#2 |
Member
Maries
Join Date: Mar 2010
Location: Cologne, Germany
Posts: 75
Rep Power: 16 |
Hi,
For skew, I believe fluent skew in Ansa has similar definition. In ansa quality criteria, go to solids tab, enable only skew and go to dropdown and select fluent. You can see the quality criteria definition by hovering the mouse over that quality. Maries |
|
May 17, 2022, 18:30 |
|
#3 | |
New Member
Join Date: May 2022
Posts: 2
Rep Power: 0 |
Quote:
Thanks for replying. Changing the Skewness definition from Nastran to Fluent made the criteria definition match what I was looking for. -Jazmine |
||
May 19, 2022, 07:42 |
|
#4 |
Member
Maries
Join Date: Mar 2010
Location: Cologne, Germany
Posts: 75
Rep Power: 16 |
Yes. they have separate quality crieteria for surface elements & Volume elements. Press F11 the menu will open, you can see shells and solids in different tabs.
|
|
Tags |
element quality, hypermesh, skewness, tet mesh, tetrahedral mesh |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Ansa batch mode for already running ansa window | Viswa | ANSA | 5 | May 21, 2020 15:08 |
Ansa Python Scripting | Renu123 | ANSA | 2 | August 29, 2017 03:46 |
Equivalent length of helical coil | Jeffreyb723 | Main CFD Forum | 0 | August 18, 2017 22:26 |
Stopping criterion for outer iteration loop | luftraudi | Main CFD Forum | 3 | February 22, 2017 08:59 |
Asymptotic stopping criterion is not working | rob50904 | STAR-CCM+ | 2 | January 28, 2013 08:25 |