Simulating Gusts in 3D

[mandralis]

Hi all,

I recently discovered the Gust simulation capabilities of SU2 for two-dimensional Euler flows.

I am trying to implement the additional terms necessary for extending the method to 3D Navier-Stokes flows.

I am running into trouble when trying to implement the changes necessary to achieve this.

For now, I have began working on the two functions responsible for the gust simulations:

1. SU2/SU2_CFD/src/iteration_structure.cpp::CFluidIteration::SetWind_GustField
2. SU2/SU2_CFD/src/numerics/flow/flow_sources.cpp::CSourceWindGust::ComputeResidual

From what I understand the extension to 3D should simply consist in modifying the function SetWind_GustField to impose a 3D grid-velocity instead of a 2D grid velocity, and adding the appropriate source terms in the function CSourceWindGust (these can even be set to zero, just to debug the code).

However, when I try to implement these changes, I get a segmentation fault that I cannot identify.

Does someone have an idea on how to implement this feature successfully ?

PS: I have attached the modifications I made to the two functions mentioned above here:
SetWind_GustField.txt
ComputeResidual.txt

[pcarruscag]

Hello,
I think @bigfooted tried to implement the 3D version, this is in the develop branch now.
We have developer meetings every Wednesday at 3pm UK https://meet.jit.si/SU2_DevMeeting to discuss this type of issue.
Join if you can.

[mandralis]

Hi,
Thanks for your response ! I will join the developer meeting today - see you then.
Best,
Ioannis

[bigfooted]

Maybe you can create a feature branch with this added feature so we can reproduce the crash and (help you) debug it.

[pcarruscag]

Were you able to implement the 3D gusts @mandralis? I recall some issue you mentioned with a segfault.