Unexpectedly High Mach Number Calculation at the Edge of Blade Geometry

[MKursatUzuner]

I am using SU2 v7.0.6 to do turbomachinery simulations. I am using a radial compressor. There are points in my flow field that show unexpected values of temperature and density, which also makes mach values at those points to be abnormal. There is a sudden change at the trailing edge in my geometry. These points are located right at the trailing edge of my blade and only at these points I see abnormal density and temperature values. I made sure that the velocity of the blade was correctly set. I am sharing a sectional close-up of the trailing edge of my blade with the mesh at that region being visible.

I am using SST turbulence model. I have simulated a specific case without turbulence to see if it was the issue and the same behavior was present so, the turbulence model does not seem to induce this issue. I have shared my configuration file with numerical information redacted, only to show which markers and settings I am using. Currently I can't share my mesh file.

Configuration.txt

This issue is present when I am only using basic Roe scheme with MUSCL option turned off. If I turn on MUSCL option, the density and temperature values at these points become even more unnatural and diverge my simulation.

• OS: [ Linux (Ubuntu 18.04.5)]
• C++ compiler and version: [g++ (GCC) 7.5.0]
• MPI implementation and version: [OpenMPI 2.1.1]
• SU2 Version: [v7.0.6]