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Use coarse grid flow solution as initial solution for fine grid |
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March 22, 2019, 05:10 |
Use coarse grid flow solution as initial solution for fine grid
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#1 |
New Member
Nathan Ricks
Join Date: Aug 2015
Posts: 10
Rep Power: 11 |
Hi SU2 Users,
I think the title is pretty self-explanatory, but I will expand for clarity. I'm just wondering if it is possible to use a flow solution from a coarse grid, as the initial solution for running a finer resolution grid of the same geometry? So if there is some sort of built-in interpolation between two meshes? I'm running a case where if the solution does not converge, I refine the mesh, and run again on the refined mesh - so it would be great if I could use the flow solution obtained from the coarse mesh (as long as it didn't diverged, just didn't converge in a set number of iterations) as a starting point for the fine grid. If you know if this sort of thing is available, please let me know! Thank you in advance, Kind Regards, Nathan |
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March 31, 2019, 18:59 |
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#2 |
Senior Member
Pedro Gomes
Join Date: Dec 2017
Posts: 466
Rep Power: 13 |
Hi Nathan,
Currently that functionality is not implemented, but someone is working on it for v7. Cheers, Pedro |
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April 2, 2019, 10:25 |
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#3 |
New Member
Nathan Ricks
Join Date: Aug 2015
Posts: 10
Rep Power: 11 |
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January 20, 2023, 13:34 |
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#4 |
Member
Giovanni Medici
Join Date: Mar 2014
Posts: 48
Rep Power: 12 |
I know it is a relatively old post, anyway I was wondering whether the function
of interpolating a solution of a coarse mesh onto a refined one, is actually available in the latest SU2 versions (7.5.0). I know that a lot of effort was carried out in the last years and releases, and that until say version 7.0.3 a feature_adap branch was carrying that option (it was actually providing a lot more, with mesh adaptation based on solution parameters). To my understanding that branch didn't make it to merge to the master one, and is not updated. Thanks! |
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January 20, 2023, 19:15 |
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#5 |
Senior Member
Pedro Gomes
Join Date: Dec 2017
Posts: 466
Rep Power: 13 |
It is currently possible to restart from a solution on a coarser (or finer) mesh.
No options are required. |
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January 21, 2023, 04:41 |
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#6 |
Member
Giovanni Medici
Join Date: Mar 2014
Posts: 48
Rep Power: 12 |
Oh, that's great, thanks for the answer Pedro!
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January 25, 2023, 08:00 |
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#7 |
Member
Hyun Ko
Join Date: Jun 2009
Posts: 35
Rep Power: 17 |
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Tags |
grid refinement, interpolation, restart solution, su2 |
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