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September 25, 2017, 05:17
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Gradient is zero
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#1 |
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New Member
Nikita Ageev
Join Date: May 2017
Posts: 11
Rep Power: 8  |
I try to optimize the forebody shape. I have created my own forebody, generated mesh, performed direct and continuous adjoint solution (Euler equations). I have also checked if the onera m6 Euler optimization workable. But now I got zero gradient as a result of the SU2_DOT work. Can somebody help me with this? The working directory (without mesh and results) attached.
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September 25, 2017, 08:34
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#2 |
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Super Moderator
Tim Albring
Join Date: Sep 2015
Posts: 195
Rep Power: 10 |
Hi,
can you also attach the mesh file ? Thanks! Tim |
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September 25, 2017, 08:55
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#3 |
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New Member
Nikita Ageev
Join Date: May 2017
Posts: 11
Rep Power: 8 |
Thank you, Tim!
Today I have found that scales of FFD and mesh aren't equal and FFD is "inside the model". I fixed it and hope that it will work now :-) |
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September 25, 2017, 08:59
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#4 |
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Super Moderator
Tim Albring
Join Date: Sep 2015
Posts: 195
Rep Power: 10 |
Alright!
Just a tip: you can visualize the FFD box after running SU2_DEF by opening the FFD_boxes.dat file within Tecplot. |
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| Tags |
| gradient, optimization, su2, zero gradient |
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