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-   -   [ICEM] need help to use ICEM CFD as mesher (http://www.cfd-online.com/Forums/ansys-meshing/111088-need-help-use-icem-cfd-mesher.html)

happy December 26, 2012 22:37

need help to use ICEM CFD as mesher
 
1 Attachment(s)
Hi all
Dear FAr & Simon, both look ICEM CFD users. Could any one of you help me to generate my mesh. I attached my geometry in order to help.
PLease.
I try it many times but it comes wrong with me.
I import the geometry using file/workbench readers
and then set the boundaries and add material and do bloking and then spilt the block to capture the features of my geometry
then do O-grid as well as, I associate the curves with necessary curves
and then set the size of my mesh and then do pre-mesh finally I save the mesh as .uni file and open it to export the ansys cfx mesh (.msh).
But all of that do not give me any good mesh.
Please give me seruis hand to do.Or do it and send it to me via this mail
sofarineed@gmail.com
Attachment 17826
Best Regards

happy January 2, 2013 00:34

happy new year
 
happy new year every one.
Is there anyone can help:D?
Regards

energy382 January 2, 2013 05:03

Quote:

Originally Posted by happy (Post 399681)
happy new year every one.
Is there anyone can help:D?
Regards

Upload your .blk file. I can check it and give you advice, but I don't have time to make a new one....that's your task ;)

Far January 2, 2013 11:18

1 Attachment(s)
Hi Safia

Find the blocking. Need to adjust the edge mesh parameters are per requirements.

Far January 2, 2013 11:42

1 Attachment(s)
oops forgot to add the o-grid. I think that is some inlet or outlet...

happy January 2, 2013 21:31

does not work. it needs attribute files (.atr or .fbc)
 
Thanks Far
did you do hexa mesh or tetra one.
Regards
Safia

Far January 3, 2013 00:04

Hexa :confused:

if ICEM asks for something extra just press cancel

happy January 4, 2013 02:08

thanks
 
Quote:

Originally Posted by Far (Post 399775)
oops forgot to add the o-grid. I think that is some inlet or outlet...

Hi
when I try to view mesh the ICEF CFD gave me this message
User error:no surfaces in family ORFN could not project point
How I can overcome this error?
Regards

Far January 4, 2013 04:48

did you click on the project file to open it?

I am not getting such problem....

happy January 4, 2013 05:35

another queation, please
 
[QUOTE=Far;400054]did you click on the project file to open it?

I am not getting such problem....[/QUOTE
Dear FAR,,,,
I got it. After I open I read the surface model of my geometry again with keeping the O-grid. It is working.
BUT the inlet after meshing is square although I made it circular in design modeler file.
So how I can deal with this issue. I want circular inlet nor square.
Any comment can help.
Best Regards

Far January 4, 2013 07:07

Open the project file

If it does not load the tin and blk then manually add the files.(this may happen as I have renamed the .tin, .blk and .prj files and then zipped them)

1. First open the .tin file I have sent through zip

2. Read the corresponding .blk file. The inlet will be round ;)

Far January 4, 2013 10:52

4 Attachment(s)
Please use the attached files and thanks ;)

happy January 4, 2013 21:42

2 Attachment(s)
Quote:

Originally Posted by Far (Post 400069)
Open the project file

If it does not load the tin and blk then manually add the files.(this may happen as I have renamed the .tin, .blk and .prj files and then zipped them)

1. First open the .tin file I have sent through zip

2. Read the corresponding .blk file. The inlet will be round ;)

1-when I open the tin file, I recieve this message below
Usage: define_curve [tetra_size %d] [name %s] [family %d] [width %d] [nlayers 269225800] [ratio %f] [min %f] [dev %f] (data on following lines)
error executing command: define_curve
error in room_safia_Far_O-grid.tin
can't read surface model
so I cannot see any thing.
2-when I open prj file it requests .tin and .blk files(both exist) but it requests the
atr file too (not exist). even I do cancel I only see square inlet after mesing.
did you draw the model using iCEM CFD or import my geometry on ICEM CFD?
you have not a problem because you have all files.
Really, I appreciate your help, and I wish if you help me solve this matter.

Best RegardsAttachment 17987

Attachment 17988

Far January 5, 2013 00:32

Ok got it. I made these files in R14 and you are using R13. Using the updated version will solve this issue.

happy January 5, 2013 03:25

thanks for explaination &some equations
 
Quote:

Originally Posted by Far (Post 400147)
Ok got it. I made these files in R14 and you are using R13. Using the updated version will solve this issue.

Dear Far,,,
Could you please show me in details how you made your mesh? Some of that, I did it before and the rest still non-understandable.
Is the release 14 only can handle this configuration?
The cluster at my university has Re13 so that there are not benefits to do it in Re14(time cost).
I would like to conduct my mesh and simulation using Re13 (no choice).
So could you please show me in private a message?
Your favor will not be forgeable.
Regards

Far January 5, 2013 09:00

Quote:

Is the release 14 only can handle this configuration?
Any version can handle this. But requires hexa license.

Quote:

The cluster at my university has Re13 so that there are not benefits to do it in Re14(time cost).
No problem. You can make the mesh in rR14 and simulation in R13


Quote:

I would like to conduct my mesh and simulation using Re13 (no choice).
See above

happy January 6, 2013 00:14

thanks
 
Dear Far
I like your reply.
Now, I'll update my software to work get my results.
Regards

Far January 6, 2013 00:32

Quote:

Originally Posted by happy (Post 400268)
Dear Far
I like your reply.
Now, I'll update my software to work get my results.
Regards

I will upload video on youtube to show you step by step procedure.

happy January 6, 2013 01:23

thanks
 
Quote:

Originally Posted by Far (Post 400269)
I will upload video on youtube to show you step by step procedure.

Dear Far,,,
thanks a lot.
Regards

mohw2002 January 6, 2013 11:24

HI FOR EVERY ONE
i HAVE PROBLEM WHEN I MESH MY GEOMETRY (QUARTER PIPE WITH ONE PERFORATION) BY HEXA MESH. WHEN I COMPLETED FROM MESH I SENT MY MESH TO CFX BUT CXF OBJECTED AND REFUSE TO COMPLETE THE SOLVER AND THE ERROR ISSUED AS BELOW. HOW CAN I TREAT THIS PROBLEM WITH SYMMETRY BECAUSE I HAVE VERTICAL SYMMETRY ( CONSIST FROM TWO SURFACE (ONE SMALL FOR PERFORATION AND THE OTHER ONE BELOW FROM IT I.E. TOUCH WITH THE UPPER ONE FOR THE PIPE) AND THE OTHER SYMMETRY HORIZONTAL ONE).
I CAN'T MERGE THE UPPER ONE AND LOWER ONE.
WHY THE CFX OBJECTED?
HOW CAN I PASS THIS PROBLEM?

ERROR #002100013 has occurred in subroutine Chk_Splane. |
| Message: |
| The symmetry boundary condition requires that the boundary patch |
| mesh faces form a plane or axis. However, face set 6 in the |
| symmetry boundary patch |
| |
| SYMETRY |
| |
| is not in a strict plane, which means that at least one of its |
| faces is not parallel to the others. To make the solver run |
| you can do one of the following: |
| |
| (1) Make sure that this symmetry boundary patch is in a plane or |
| axis by checking and regenerating the mesh. |
| (2) If the symmetry boundary patch is an axis rather than a |
| plane, change the tolerance of the degeneracy check by |
| increasing the value of the Solver Expert Parameter |
| 'degeneracy check tolerance' (the default value is 1.e-4). |
| (3) Increase the value of the Solver Expert Parameter |
| 'vector parallel tolerance' (the default value is 1 deg.). |
| Note that the accuracy of the symmetry condition may decrease |
| as the tolerance is increased. This is because the tolerance |
| is the number of degrees that a mesh face normal is allowed |
| to deviate from the average normal for the entire face set.


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