[ICEM] meshquality of centrifugal impeller and blade problem

Bellmo · July 19, 2011, 06:01

i tried to mesh my centrifugal impeller and did get problems with the blade. but i think, even if i would manage to get it fixed without errors, i still have a bad mesh quality. someone created me a final mesh, but its still not usable for me since i don't get the quality fixed. i need 3x3 determinants of ~0.3 and min angles of 18. i uploaded the files and it would be nice if i could get some help. impeller_new is made by me and the other file by someoneelse.

regards and thanks in advance

http://uploaded.to/file/wlxe1i2f

Bellmo · July 26, 2011, 19:10

noone who can help?

PSYMN · July 29, 2011, 10:57

I just took a quick look at your version (Impeller_new) and see that you don't even have a CGrid around the leading edge of your blade...

You also have mesh jumping across your solid portion, etc.

It is probably too much for me to sort out right now, but maybe I will get back and take another look next week.

Far · January 1, 2012, 12:49

@Bellmo

Did you solve your problem?

Bellmo · January 5, 2012, 14:38

no i didn't. i moved on with turbo grid. but if i get a useable icem mesh, that would be great

Far · January 5, 2012, 15:28

well, right now I am working on radial turbine and centrifugal compressor using ICEM and got very good quality meshes (0.4 or better quality) and trying to improve it further. We can work together to solve your problem.

You can download geometry and blocking in this thread http://www.cfd-online.com/Forums/ans...l-turbine.html

July 19, 2011, 06:01	meshquality of centrifugal impeller and blade problem	#1
Bellmo New Member Marcus Join Date: May 2011 Posts: 5 Rep Power: 14	i tried to mesh my centrifugal impeller and did get problems with the blade. but i think, even if i would manage to get it fixed without errors, i still have a bad mesh quality. someone created me a final mesh, but its still not usable for me since i don't get the quality fixed. i need 3x3 determinants of ~0.3 and min angles of 18. i uploaded the files and it would be nice if i could get some help. impeller_new is made by me and the other file by someoneelse. regards and thanks in advance http://uploaded.to/file/wlxe1i2f

July 29, 2011, 10:57		#3
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	I just took a quick look at your version (Impeller_new) and see that you don't even have a CGrid around the leading edge of your blade... You also have mesh jumping across your solid portion, etc. It is probably too much for me to sort out right now, but maybe I will get back and take another look next week. __________________ ----------------------------------------- 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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July 26, 2011, 19:10		#2
Bellmo New Member Marcus Join Date: May 2011 Posts: 5 Rep Power: 14	noone who can help?

January 1, 2012, 12:49		#4
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	@Bellmo Did you solve your problem?

January 5, 2012, 14:38		#5
Bellmo New Member Marcus Join Date: May 2011 Posts: 5 Rep Power: 14	no i didn't. i moved on with turbo grid. but if i get a useable icem mesh, that would be great

January 5, 2012, 15:28		#6
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	well, right now I am working on radial turbine and centrifugal compressor using ICEM and got very good quality meshes (0.4 or better quality) and trying to improve it further. We can work together to solve your problem. You can download geometry and blocking in this thread http://www.cfd-online.com/Forums/ans...l-turbine.html