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Is SU2 able to handle adjoint for pressure distribution when doing inverse design?

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Old   November 23, 2016, 01:40
Post Is SU2 able to handle adjoint for pressure distribution when doing inverse design?
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Xiaosong
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Hi all,

I am doing pressure inverse design using SU2. It will speed up the computation if adjoint could be added. I know SU2 can handle adjoint for Cd and Cl, and also find that objective function could be set as inverse_design_pressure in SU2. So, I am just wondering whether I can do adjoint for this, as well, just like that for Cd and Cl.

Thanks for the patience! Any comments are very welcome!

Thanks,
Xiaosong
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Old   December 4, 2016, 01:15
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hlk
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Quote:
Originally Posted by Xiaosong View Post
Hi all,

I am doing pressure inverse design using SU2. It will speed up the computation if adjoint could be added. I know SU2 can handle adjoint for Cd and Cl, and also find that objective function could be set as inverse_design_pressure in SU2. So, I am just wondering whether I can do adjoint for this, as well, just like that for Cd and Cl.

Thanks for the patience! Any comments are very welcome!

Thanks,
Xiaosong
Yes, it can.
Set the appropriate objective function, and run the adjoint as you would for Cd or Cl.
See example in TestCases/optimization_euler/steady_inverse_design/ - note that config file and mesh/target cp files are in the su2code/SU2 and su2code/TestCases repositories respectively:

https://github.com/su2code/SU2/tree/...inverse_design

https://github.com/su2code/TestCases...inverse_design
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Old   December 4, 2016, 01:25
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Quote:
Originally Posted by hlk View Post
Yes, it can.
Set the appropriate objective function, and run the adjoint as you would for Cd or Cl.
See example in TestCases/optimization_euler/steady_inverse_design/ - note that config file and mesh/target cp files are in the su2code/SU2 and su2code/TestCases repositories respectively:

https://github.com/su2code/SU2/tree/...inverse_design

https://github.com/su2code/TestCases...inverse_design
OK! I see! Thank you very much for your reply!
Actually, I have already tried that test case, and started building up my own cases.

For now, I get one more question:
in source code, the objective function = SUM{area * (cp - cp_target) * (cp - cp_target)}, where area is obtained from modulus of normal vectors of each small segment on airfoil. But each node will have two lines sharing it, which arc should we take into the formula, please?

Thanks,
Xiaosong
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