CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Meshing & Mesh Conversion

Native OpenFOAM interface in Pointwise

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   January 29, 2009, 07:42
Default Marco, We have a distributo
  #21
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 296
Rep Power: 10
cnsidero is on a distinguished road
Marco,

We have a distributor in Germany. His name is Uli Fuchs and he can be contacted at:

uli at cfdbertung dot de
www.cfd-beratung.de
+49 7472 282410

Sorry, the software is not free - we offer free evaluations for a short period of time but you should speak to Uli about how he handles new customers.
cnsidero is offline   Reply With Quote

Old   February 12, 2009, 12:12
Default Hi Chris and Hrv Thank
  #22
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei
Hi Chris and Hrv

Thanks for the native export utility for OpenFOAM with pointwise.
But I encountered a problem with its wedge shape mesh exporter for axisymmetric application.
In the axis, there are a lot of faces with zero area. yes, there should be with structure grid.
However, how to set the boundary condition. I searched the discussion board and found that an empty patch is preferred for such a situation. For instance
http://www.cfd-online.com/cgi-bin/Op....cgi?126/11122

But I am not that lucky, and got a message below when starting the simulation

This mesh contains patches of type empty but is not 1D or 2D
by virtue of the fact that the number of faces of this
empty patch is not divisible by the number of cells.

From function emptyFvPatchField<type>::updateCoeffs()
in file fields/fvPatchFields/constraint/empty/emptyFvPatchField.C at line 148.

Yes, it is indeed in my case.

why not delete the faces with zero area at axis? Any suggestions for the boundary condition for axis or methods to delete these zero area faces?

The native mesh with pointwise format is attached.



su junwei
su_junwei is offline   Reply With Quote

Old   February 12, 2009, 12:16
Default
  #23
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei

su_junwei is offline   Reply With Quote

Old   February 12, 2009, 12:30
Default sorry the file is too big. you
  #24
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei
sorry the file is too big. you can download it here
http://www.box.net/shared/0pofg2ah7o
su_junwei is offline   Reply With Quote

Old   February 12, 2009, 13:02
Default I think you need to have a sin
  #25
Member
 
Dennis Kingsley
Join Date: Mar 2009
Location: USA
Posts: 45
Rep Power: 7
dkingsley is on a distinguished road
I think you need to have a single node at each longitudinal location and create poles along the axis.

Right now your patch is 2x along the axis face of the block and that is where you zero area panels are coming from.
dkingsley is offline   Reply With Quote

Old   February 12, 2009, 13:09
Default Still not used to Pointwise, i
  #26
Member
 
Dennis Kingsley
Join Date: Mar 2009
Location: USA
Posts: 45
Rep Power: 7
dkingsley is on a distinguished road
Still not used to Pointwise, it looks like you do have a pole in the right place.
dkingsley is offline   Reply With Quote

Old   February 12, 2009, 13:18
Default Yes, Dennis. I did set a pole
  #27
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei
Yes, Dennis. I did set a pole at axis. That's why there are so many zero-area faces.
It seems that OpenFOAM doesn't like these zero-area faces and blockMesh utility will not generate these zero-area faces for wedge shape.

I made the mesh in gridgen, and then imported into pointwise.

su junwei
su_junwei is offline   Reply With Quote

Old   February 12, 2009, 22:42
Default Try using gridgen and export i
  #28
Member
 
Dennis Kingsley
Join Date: Mar 2009
Location: USA
Posts: 45
Rep Power: 7
dkingsley is on a distinguished road
Try using gridgen and export it as a Fluent grid and use the FluentMeshToFoam and see if the pole behaves correctly. Its not what is ultimately wanted but it might help the Pointwise folks figure out what is wrong.

I routinely use poles in more complicated 3d grids and have not had an issue going through Fluent.

I am taking off for a long weekend or I would try it myelf.
dkingsley is offline   Reply With Quote

Old   February 13, 2009, 05:47
Default Yes, Dennis. I have checked wi
  #29
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei
Yes, Dennis. I have checked with fluentMeshToFoam with gridgen. It works perfectly.

Thanks, Junwei
su_junwei is offline   Reply With Quote

Old   February 13, 2009, 08:13
Default like I indicated last night I
  #30
Member
 
Dennis Kingsley
Join Date: Mar 2009
Location: USA
Posts: 45
Rep Power: 7
dkingsley is on a distinguished road
like I indicated last night I am on the road.

You should log this as a bug on the pointwise website. I have had great response from their customer support over the years.
dkingsley is offline   Reply With Quote

Old   February 13, 2009, 09:02
Default Anyone calling my name here?
  #31
Senior Member
 
Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,728
Rep Power: 20
hjasak will become famous soon enough
Anyone calling my name here? There are things we can do in the converter (eg collapsing pole points just like in blockMesh), but I would rather see this fixed further upstream. Sounds to me like this is a call for Pointwise (David?).

Hrv
__________________
Hrvoje Jasak
hjasak is offline   Reply With Quote

Old   February 13, 2009, 09:33
Default I will pass this information o
  #32
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 296
Rep Power: 10
cnsidero is on a distinguished road
I will pass this information on to support so they can look at it but it would be good for one of you (Dennis of Su Junwei) to contact support with the details.

-Chris
cnsidero is offline   Reply With Quote

Old   February 13, 2009, 10:23
Default Just to be clear, if you creat
  #33
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 296
Rep Power: 10
cnsidero is on a distinguished road
Just to be clear, if you create a mesh with poles in it:

1) using Pointwise and export to OF you get zero area faces

2) make mesh in Gridgen then import into Pointwise and export to OF you get zero area faces

3) make mesh in Gridgen/Pointwise then export to Fluent and convert to OF using fluentMeshToFoam it works

If this is case, it seems to me the fluentMeshToFoam converter is eliminating the zero area faces (the ones on the axis). I believe Fluent (the solver) has a special way of handling cells/faces on poles. I will speak to our developers and get back to you about his.
cnsidero is offline   Reply With Quote

Old   February 19, 2009, 14:40
Default I have spoke to our developers
  #34
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 296
Rep Power: 10
cnsidero is on a distinguished road
I have spoke to our developers and they are looking into the issue.
cnsidero is offline   Reply With Quote

Old   April 13, 2009, 15:59
Default update to OF/PW pole export
  #35
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 296
Rep Power: 10
cnsidero is on a distinguished road
See the new thread:

http://www.cfd-online.com/Forums/ope...tml#post212740
cnsidero is offline   Reply With Quote

Old   January 30, 2010, 10:23
Default
  #36
Senior Member
 
su_junwei's Avatar
 
su junwei
Join Date: Mar 2009
Location: Xi'an China
Posts: 151
Rep Power: 9
su_junwei is on a distinguished road
Send a message via MSN to su_junwei
Dear all

It seems that the "volume conditions" in Pointwise doesn't work for OpenFOAM native exporter in Pointwise. That is Pointwise can't export volume zone (cell zone, or face zone etc) with OpenFOAM exporter even though you have set volume conditon for the mesh. Volume conditions in Pointwise works for fluent exporter. Did you encoutered such a problem? Is it a bug or I did't use it correctly ?

Junwei
su_junwei is offline   Reply With Quote

Old   January 30, 2010, 17:19
Default
  #37
Senior Member
 
John Chawner
Join Date: Mar 2009
Location: Fort Worth, Texas, USA
Posts: 203
Rep Power: 8
jchawner is on a distinguished road
Marco:

Evaluation licenses are indeed free and we'd love to have you try it. To learn more about the software I suggest that you contact our sales partner in Germany, CFD Beratung, directly. Their contact information is on our web site's "Contact Us" page.

Best Regards
__________________
John Chawner / jrc@pointwise.com / www.pointwise.com
Blog: http://blog.pointwise.com/
on Twitter: @jchawner
jchawner is offline   Reply With Quote

Old   July 26, 2010, 16:11
Default OpenFoam and Pointwise
  #38
New Member
 
Join Date: Jul 2010
Posts: 17
Rep Power: 6
hm86 is on a distinguished road
Hi everyone-

I am trying to create a mesh for Openfoam using an IGS file I imported from Solidworks. I have a turbine in the center and a cylindrical bounding box around it. I created domains for the turbine and cylindrical outer domain but cannot seem to create blocks to export to OpenFoam. Does anyone know how to do this or have any suggestions?

Thanks!
hm86 is offline   Reply With Quote

Old   May 14, 2012, 17:43
Default
  #39
Member
 
Elh. A2. BAH
Join Date: Jan 2012
Posts: 63
Rep Power: 4
ebah6 is on a distinguished road
Dr. Sideroff,

I am using Pointwise to generate meshes for OpenFOAM.
As of now I can export properly fully structured and fully unstructured meshes.
However with a hybrid grid, only the structured faces are exported.
Note: by hybrid I mean that I created a surface with an unstructured mesh and I extrude it in the 3rd dimension.

Can you give me a lead on how to proceed with such hybrid grids.

Thank you for your time and best regards.

Elhadji
ebah6 is offline   Reply With Quote

Old   May 17, 2012, 09:43
Default
  #40
Member
 
Travis Carrigan
Join Date: Jul 2010
Location: Arlington, TX
Posts: 77
Rep Power: 6
tcarrigan is on a distinguished road
Elhadji,

The issue you are reporting was resolved in Pointwise V16.04R4. To resolve the issue, please download the latest version of Pointwise.


Travis
tcarrigan is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Native OpenFOAM interface in Pointwise Chris Sideroff Main CFD Forum 0 January 16, 2009 12:37
OpenFOAM native format data visualization and workflow zeliboba OpenFOAM Post-Processing 0 September 12, 2008 08:44
Posted OpenFOAM native reader for ParaView3CVS 7islands OpenFOAM Paraview & paraFoam 0 October 24, 2007 10:52


All times are GMT -4. The time now is 19:32.