[CleverBoy]

Hello everybody,


I am trying to optimize my geometry with obj_func of SURFACE_STATIC_PRESSURE. I understand that in order to reduce the averaged pressure over a surface I have to set the weighing values as -1. When I use objective like this, Design Iterations stop after 1 adjoint calculation at DSN_002. I tried Wedge Test Cases and they don't work either. When I run a wedge test case for surface_total_pressure it returns the original geometry at DSN_003 and stops.


I am trying to read the source code to find a solution but Iam a bit loss at the moment. Any help is appreciated!


Thank you.

[bigfootedrockmidget]

Did you have a look at this tutorial that was added recently?
https://su2code.github.io/tutorials/...lent_Bend_Opt/
It optimizes the pressure drop over a 90 degree bend.

[CleverBoy]

Thank you for the info. I am trying to do an unsteady adjoint simulation so I am following that one tutorial about Unsteady Shape Optimization of an Airfoil.
Also, FADO is a bit complicated to dive in, I am using shape_optimizaton.py at the moment.

When I use the weight as +1, it works and changes the geometry accordingly to increase the pressure but adjoint simulations doesn't work for -1. I don't understand the reason behind this.

[CleverBoy]

I even tried ver6.2.0 for this and the results are the same.

  NIT    FC           OBJFUN            GNORM
    1     2     7.760305E+05     4.904019E+03
Optimization terminated successfully    (Exit mode 0)
            Current function value: 775956.901
            Iterations: 1
            Function evaluations: 3
            Gradient evaluations: 1

For the wedge test case in /TestCases/cont_adj_euler/wedge simulation stops after 1 NIT as in my own cases.