von-Karman Vortex Street

[DanielDoehring]

Until now, the famous von-Karman vortex street emanating from a cylinder was not present in Trixi.jl This PR brings it in as a truly compressible flow (Mach 0.5), see the density plot:

on a symmetric mesh with refinements in wake region & around the cylinder:

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.42%. Comparing base (ff8f260) to head (96bf71e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2246      +/-   ##
==========================================
+ Coverage   95.56%   96.42%   +0.86%     
==========================================
  Files         488      489       +1     
  Lines       39362    39376      +14     
==========================================
+ Hits        37614    37966     +352     
+ Misses       1748     1410     -338     

Flag	Coverage Δ
unittests	96.42% <100.00%> (+0.86%)	⬆️

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[ranocha]

Nice! I'll leave a thorough review to Andrew

[DanielDoehring]

I will mark this as draft since @andrewwinters5000 has cooked up a symmetric mesh using the recent HOHQMesh feature. I will investigate if the vortex street still shows in this scenario or if symmetry breaks this.

[andrewwinters5000]

Thanks for adding this testcase! Everything looks good from my side.