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

OfirLaor · January 11, 2012, 12:21

Hi,
Unsuccessfully, I’m trying to make FLUENT to accept my MESH file (in ANSYS WorkBench), and I’m quite stuck with it…
I’m trying to simulate the 2D flow over the shape that I attached to this thread. Somehow, no matter which shape of domain I’m using, when trying to do the SETUP, and updating the MESH, I get this message over and over again- “The mesh file exporter failed during translation…“
I tried splitting the domain into different areas and Map it, I tried Sizing controls… But still, nothing…
If anyone have a good idea - I’ll be grateful,
Thanks

Far · January 11, 2012, 22:37

what is the extension of mesh file?

OfirLaor · January 12, 2012, 06:06

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.

Far · January 12, 2012, 07:24

I assume your case is 2D, did you transform your mesh to x-y plane?

OfirLaor · January 12, 2012, 07:54

Yea, it is 2D on X-Y plane

Far · January 12, 2012, 07:58

could you explain your little bit more with snapshot of screen when you get the error. There may be many reasons !!!!

OfirLaor · January 12, 2012, 08:21

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

Neraste · February 14, 2012, 09:07

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

OfirLaor · February 14, 2012, 16:04

Hi Neraste,
Unfortunately I can't help... Never find any solution to my problem as well....

Good Luck

Neraste · February 14, 2012, 16:24

So, what did you do? Did you use another mesher software?

OfirLaor · February 14, 2012, 17:22

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

Neraste · February 15, 2012, 05:36

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.

Neraste · February 17, 2012, 05:07

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.

jsm · February 17, 2012, 06:52

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.

Neraste · February 17, 2012, 07:25

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).

villager · February 17, 2012, 17:12

Quote:

Originally Posted by Neraste

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.

Neraste · February 20, 2012, 10:52

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).

sadir · February 20, 2012, 15:00

this could be about cad file format. save as parasolid format may help you

OfirLaor · April 9, 2012, 13:09

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!

February 17, 2012, 06:52		#14
jsm Senior Member JSM Join Date: Mar 2009 Location: India Posts: 192 Rep Power: 20	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. __________________ With regards, JSM

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[ICEM] surface mesh merging problem	everest	ANSYS Meshing & Geometry	44	April 14, 2016 06:41
[ICEM] Problem making structural mesh on a surface	froztbear	ANSYS Meshing & Geometry	1	November 10, 2011 08:52
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere!	sc298	OpenFOAM Meshing & Mesh Conversion	2	March 27, 2011 21:11
Meshing aifoil in ICEM	student123a	ANSYS Meshing & Geometry	13	December 8, 2010 10:40
2d irregular grid	Remy	Main CFD Forum	1	December 22, 2008 04:49

January 11, 2012, 22:37		#2
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	what is the extension of mesh file?

January 12, 2012, 06:06		#3
OfirLaor New Member Ofir Laor Join Date: Nov 2011 Posts: 10 Rep Power: 14	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.

January 12, 2012, 07:24		#4
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	I assume your case is 2D, did you transform your mesh to x-y plane?

January 12, 2012, 07:54		#5
OfirLaor New Member Ofir Laor Join Date: Nov 2011 Posts: 10 Rep Power: 14	Yea, it is 2D on X-Y plane

January 12, 2012, 07:58		#6
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	could you explain your little bit more with snapshot of screen when you get the error. There may be many reasons !!!!

February 14, 2012, 09:07		#8
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	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

February 14, 2012, 16:04		#9
OfirLaor New Member Ofir Laor Join Date: Nov 2011 Posts: 10 Rep Power: 14	Hi Neraste, Unfortunately I can't help... Never find any solution to my problem as well.... Good Luck

February 14, 2012, 16:24		#10
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	So, what did you do? Did you use another mesher software?

February 14, 2012, 17:22		#11
OfirLaor New Member Ofir Laor Join Date: Nov 2011 Posts: 10 Rep Power: 14	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

February 15, 2012, 05:36		#12
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	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.

February 17, 2012, 05:07		#13
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	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.

February 17, 2012, 07:25		#15
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	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).

February 20, 2012, 10:52		#17
Neraste New Member N7student Join Date: Feb 2012 Posts: 9 Rep Power: 14	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).

February 20, 2012, 15:00		#18
sadir New Member selcuk Join Date: Feb 2012 Posts: 2 Rep Power: 0	this could be about cad file format. save as parasolid format may help you

April 9, 2012, 13:09		#19
OfirLaor New Member Ofir Laor Join Date: Nov 2011 Posts: 10 Rep Power: 14	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!