[aero_peace]

Dear all,

I am having an issue obtaining the heat transfer output along a nozzle wall. For the wall boundary condition, I am using MARKER_ISOTHERMAL= ( Wall, 300.0 ) to set a 300 K constant temperature condition on the wall. After running a converged RANS solution with the SST turbulence model, inspection of the surface flow file in ParaView yields a wall heat transfer of 0 everywhere along the wall. Additionally, the wall temperature is now a distribution rather than remaining fixed at the 300 K constant temperature boundary condition. It almost appears as though the wall temperature reaches the adiabatic wall temperature that would be obtained if the wall boundary condition was set to MARKER_HEATFLUX= (Wall, 0.0 ). I have attached my .cfg file (test.txt) in case I am missing something minor, but any help would be greatly appreciated!

Thanks,

Peace

[pcg]

Hi,

I just did some testing with the develop branch (soon to be v7.0) as we have had similar reports recently.
Regarding the output of heatflux to the surface output file all seems fine.
As for the temperature not being constant it can be related to mesh quality, you are using SST so if you are not resolving the viscous sublayer your wall quantities are not going to be very accurate, also try to make your wall cells truly orthogonal to it, looking at the code I don't see any correction for skewness.
You are also using 1st order Roe with a lot of entropy correction, which probably does not help.
Finally bear in mind SU2 does not do any treatment of those results, contrary to some commercial solvers that have a setting to "show what you want to see" in SU2 what you get is what you see.

It would be really helpful if you could try your case with the develop branch and report any issues.

Cheers,
Pedro

[aero_peace]

Hey Pedro,

Thank you for the quick response and comments. I must admit that I am pretty much a novice with CFD, but I enjoy the learning experience and ease of use with SU2. I would be interested in trying this again with the development branch. How would I actually go about doing that? I see there is documentation for v7.0 on the SU2 homepage with build instructions and details about the latest changes and updates, but I do not see any download links for the source files. Any thoughts?

Thanks,

Peace

[pcg]

The preferred way would be to clone the repository (https://github.com/su2code/SU2) and then checkout and compiled the branch you want.

Cheers,
Pedro