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[ANSYS Meshing] Can someone help with that Mesh???

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Old   January 11, 2012, 12:21
Default Can someone help with that Mesh???
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Ofir Laor
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Hi,
Unsuccessfully, Iím trying to make FLUENT to accept my MESH file (in ANSYS WorkBench), and Iím quite stuck with itÖ
Iím trying to simulate the 2D flow over the shape that I attached to this thread. Somehow, no matter which shape of domain Iím using, when trying to do the SETUP, and updating the MESH, I get this message over and over again- ďThe mesh file exporter failed during translationÖď
I tried splitting the domain into different areas and Map it, I tried Sizing controlsÖ But still, nothingÖ
If anyone have a good idea - Iíll be grateful,
Thanks
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Old   January 11, 2012, 22:37
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Sijal Ahmed Memon (turboenginner@gmail.com)
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what is the extension of mesh file?
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Old   January 12, 2012, 06:06
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Well, Basicly I’m meshing in the Mesh software of ANSYS 13, and then open it with FLUENT directly from WorkBench.
However, I can export the MESH file as msh, meshdat and also poly,cgns,prj and tgf.
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Old   January 12, 2012, 07:24
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I assume your case is 2D, did you transform your mesh to x-y plane?
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Old   January 12, 2012, 07:54
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Yea, it is 2D on X-Y plane
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Old   January 12, 2012, 07:58
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could you explain your little bit more with snapshot of screen when you get the error. There may be many reasons !!!!
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Old   January 12, 2012, 08:21
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OK, so here are two snapshots, which I hope can be relevant...
(Even though I couldn't find any useful information from this... )

The first is from WorkBench, and the second is from the mesh program of one of the attempts
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File Type: jpg Capturemsh.jpg (94.9 KB, 76 views)
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Old   February 14, 2012, 09:07
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Hello OfirLaor and Far

I am sorry to hijack this topic, but I have exactly the same problem with ANSYS Workbench 13.0 and whatever the simplest geometry and mesh I try to make, I have the same error message : "The mesh file exporter failed during translation..."

Actually, I want to mesh a simple 2D square...

The difference with OfirLaor's case is that I cannot export my mesh in ASCII MSH file (I obtain the same error message); I can export in binary formats however.

Do you have any solution or advice for this problem? What is wrong with this?

Thank you a lot for your help
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Old   February 14, 2012, 16:04
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Hi Neraste,
Unfortunately I can't help... Never find any solution to my problem as well....

Good Luck
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Old   February 14, 2012, 16:24
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So, what did you do? Did you use another mesher software?
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Old   February 14, 2012, 17:22
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Well, this specific problem was the first out of 370 models I tested, in order to get some results, which I can analyse and compare between... So actualy, I didn't need a high resolution of accuracy. Therefore I solved the models with SolidWorks Flow simulation. However, if you're looking for a very accurate solution, I reccomend you to stay with Ansys... Please let me know if you find somthing... thanks
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Old   February 15, 2012, 05:36
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The fact is I build meshes with Workbench long ago (one year...). But now, I am completelly unable to create any new one, even the simpliest square. That is very confusing...

If I have any trick, I will tell you.
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Old   February 17, 2012, 05:07
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Well, I have some news for you OfirLaor !

According to my school IT supervisor, version 13.1p1 of WorkBench isn't supported by Ubuntu yet, but it is OK under RHE 5 or SLES 10. Since I am working under Ubuntu, this should be the reason of the error message.

Version 14 (and 13.0) should be (is) OK with Ubuntu. I will have a try with it as soon as my IT supervisor installs it.

Hope it helps.
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Old   February 17, 2012, 06:52
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Hi,

For Fluent 2D analysis through workbench, we need to change the simulation type to "2D" before opening DM & Ansys mesher in workbench schematic. This will be available in properties panel. To get the properties, right click the fluent flow and select properties

Otherwise, Fluent will not accept the mesh. This might be the reason.
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Old   February 17, 2012, 07:25
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Well, jsm, actually I have already set this parameter on 2D.

I add I have tried a 3D cube and the result was exactly the same.

The OS incompatibility is reported on ANSYS' technical website (I don't have the source).
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Old   February 17, 2012, 17:12
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Quote:
Originally Posted by Neraste View Post
Version 14 (and 13.0) should be (is) OK with Ubuntu. I will have a try with it as soon as my IT supervisor installs it.
Hope it helps.
Yes, version 13.0 works quite good on Ubuntu Linux.

Last edited by villager; February 20, 2012 at 17:11.
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Old   February 20, 2012, 10:52
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I have additionnaly some news for you! WorkBench on Linux needs a default Bash Shell (executables refers to /bin/bash). You have to set it up if your default shell is Sh or Tcsh (like in my school).
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Old   February 20, 2012, 15:00
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this could be about cad file format. save as parasolid format may help you
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Old   April 9, 2012, 13:09
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Hi Nerasta,
I got good news!
Apparently, my problem was easy… I used Workbench and there I had “Mesh” system (box) which I have created the geometry and mesh, and I linked the mesh to other “Fluent” system to the setup.
So that was somehow wrong to do… I did the same with one system of “FluidFlow (Fluent)”, and then I had no Error….

Hope this might help, Have a nice day!
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