CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   SU2 Shape Design (https://www.cfd-online.com/Forums/su2-shape-design/)
-   -   SU2 AD solver blowing up (https://www.cfd-online.com/Forums/su2-shape-design/203037-su2-ad-solver-blowing-up.html)

kaush June 15, 2018 04:33

SU2 AD solver blowing up
 
1 Attachment(s)
Hi

I am running the AD solver in RANS mode to compute the drag sensitivities of onera M6 wing. I have validated the case given in

https://su2code.github.io/tutorials/...ined_NACA0012/

for the naca0012 airfoil. For the onera case validation I am using the grid provided in the testcase suite

https://su2code.github.io/tutorials/Turbulent_ONERAM6/

However when I run the case the adjoint solver blows up. I have tried many options like changing the cost functional, reducing the CFL for the adjoint solver, changing the discretization but none seems to work. I am hereby attaching the cfg file I have used for the latest computation(Had to change the extension to .txt). Any insights will be highly appreciated.

Regards

talbring June 29, 2018 06:31

I just tested it with the files provided in the tutorial and it works for me.

kaush July 1, 2018 23:44

Thanks,
That is surprising!
Can you please share the .cfg file details..or is it the same file as the one I shared?

regards

talbring July 3, 2018 05:57

Just use the ones provided in the tutorial:

https://su2code.github.io/tutorials/Turbulent_ONERAM6/

kaush July 3, 2018 07:09

Absolutely fine!..we get the results of the tutorial gives for the continious adjoints. Only having trouble with the discrete adjoints. Please do run the discrete_adjoint.py with the setting given in the .cfg file I have posted you would notice a blow up of the adjoint solver..


All times are GMT -4. The time now is 00:13.