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-   -   [ICEM] bad quality (http://www.cfd-online.com/Forums/ansys-meshing/112626-bad-quality.html)

tmeysam92 February 1, 2013 07:19

bad quality
 
3 Attachment(s)
HI all,

i meshed a nozzle in ICEM cfd , but the quality is not good.

what should i do?

thanks in advance.

BrolY February 1, 2013 09:22

Add at least one or two splits to your blocking.
Maybe adjust the edges of the inner O-Grid to optimize the quality.

Far February 1, 2013 09:32

Slightly more complicated CD nozzle meshing is discussed in this thread.

http://www.cfd-online.com/Forums/ans...tml#post397666

diamondx February 1, 2013 09:38

if the elements are too squeezed, try splitting edge by spline...

tmeysam92 February 1, 2013 11:26

Quote:

Originally Posted by Far (Post 405500)
Slightly more complicated CD nozzle meshing is discussed in this thread.

http://www.cfd-online.com/Forums/ans...tml#post397666

thanks Far,

the problem is that my geometry is made from 4 curves.
i mean i first import curve points to Catia then i use revolve tool to make the nozzle.
could you please take a look at my geometry and tell me what should i do ???
thank you very much.

regards,
meysam

Far February 1, 2013 11:47

1 Attachment(s)
Quote:

Add at least one or two splits to your blocking.
Maybe adjust the edges of the inner O-Grid to optimize the quality.
I agree.


I just made few splits and snaped vertices and every thing is fine. By the way, are you going to make the far field?

tmeysam92 February 1, 2013 12:08

Quote:

Originally Posted by Far (Post 405525)
I agree.


I just made few splits and snaped vertices and every thing is fine. By the way, are you going to make the far field?

thank you very much Far.

yes.

at first step i want to mesh just the nozzle.

then i will create a cylinder around the nozzle,and will mesh the volume between the nozzle and cylinder.


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