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Salehi and Nilsson - 2021 - OpenFOAM for Francis Turbine transients |
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November 16, 2021, 02:15 |
Salehi and Nilsson - 2021 - OpenFOAM for Francis Turbine transients
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#1 |
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Jozsef Nagy
Join Date: Dec 2018
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Comments and questions are welcomed on the article Salehi and Nilsson, OpenFOAM for Francis Turbine transients, OpenFOAM Journal, November 2021, https://doi.org/10.51560/ofj.v1.26.
Last edited by bigphil; April 11, 2022 at 09:00. Reason: Update link |
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August 5, 2022, 03:30 |
Mesh conversion
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MANU P ANAND
Join Date: Jul 2014
Location: Daegu , REPUBLIC OF KOREA
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Quote:
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August 8, 2022, 02:19 |
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#3 |
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Håkan Nilsson
Join Date: Mar 2009
Location: Gothenburg, Sweden
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A common way to do that is to write out in Fluent *.msh format and then use fluentMeshToFoam or fluent3dMeshToFoam to convert it to OpenFOAM format.
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September 13, 2022, 09:32 |
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#4 | |
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Saeed Salehi
Join Date: Aug 2010
Posts: 27
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Quote:
Just make sure to write an ASCII file *.msh file when exporting with ICEM as OpenFOAM's fluent3DMeshToFoam cannot handle binary files. Saeed |
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December 20, 2023, 13:30 |
Error: No grid connectivity for zone
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#5 |
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Lorenz
Join Date: Jun 2023
Location: Austria
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I hope you can give me some hints on that.
As you mentioned, i would like to use a turbogrid mesh for openfoam. As cgnstofoam is not very updated, i wanted to use your workaround with ICEM. However, when loading the mesh (unstructured cgns) into ICEM i get the error Error: No grid connectivity for zone. After that error, the mesh loads "without" a problem, and let me export as well without an error. However fluent3dtofoam fails as well as loading the .msh in fluent. There must be some error in the conversion process. I am using Turbogrid (R2022R2) with ICEM (R2020R2). greetings Lorenz
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Lorenz H. PhD Student Montanuniversity Leoben |
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December 21, 2023, 03:45 |
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#6 |
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Saeed Salehi
Join Date: Aug 2010
Posts: 27
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Hi Lorenz,
I usually do not export from Turbogrid and then import to ICEM. I use Workbench and in that case, one can just simply "connect" the two Turbogrid and ICEM modules. Then, ICEM will be able to read the Turbogrid mesh properly. Hopefully, this was the answer you were looking for. Otherwise, let me know. Saeed Last edited by salehi144; December 21, 2023 at 06:36. |
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December 23, 2023, 05:51 |
Still strange...
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#7 |
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Lorenz
Join Date: Jun 2023
Location: Austria
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Hello Saeed,
thanks for you quick reply. Unfortunatly the problem does not resolve by dragging directly in workbench. The error contuines to be the same: No grid connectivity information for zone 1 I checked if it is some error in my geometry that leads to turbogrid failure as I have developed a new CAD program for turbomachinery, that is also capable of exporting to turbogrid. But also using the Ansys Bladedesigner did not resolve it. Strangly i have observed that i cannot import in standard Fluent the CGNS file either. However fluent let me process the CGNS mesh, when importing it during the activated turbomachinery workflow that is provided in fluent. Neither do i have an issue when using CFX. Problem, i require the mesh for OpenFoam, so i am bound to get somehow the turbogrid to .msh, in order to export it. I am using Ansys 2022R2. Merry Christmas, Lorenz
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Lorenz H. PhD Student Montanuniversity Leoben |
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December 23, 2023, 10:55 |
Complicated workaround
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#8 |
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Lorenz
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Location: Austria
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As direct implementation did not work for me (at least in R2022), however this worked more me:
@saeeh, what version are you using? greetings Lorenz
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Lorenz H. PhD Student Montanuniversity Leoben |
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December 29, 2023, 09:06 |
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#9 |
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Saeed Salehi
Join Date: Aug 2010
Posts: 27
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I'm glad that it worked for you in the end. It has been a while since I used TurboGrid but I think I have used different versions (R2022 also) and they all worked the way I explained (directly from Turbogrid to ICEM and then export to *.msh).
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