View source for PHASTA/Extract Wall Shear Stress

[Compressible Flow]
How to extract the wall shear stress (wss) vectors from the ybar file containing time-averaged statistics or the restart file containing instantaneous solutions?

1. Go to the directory containing the reduced one-part geombc.dat.1 file and the ybar file, for example, ybar.352000-372000.0

2. Run the following command one by one

'''mkdir wss'''   ''create a new directory to put the wss vtk file''

'''cd wss'''

'''ln -s ../geombc.dat.1'''  ''create a softlink of the geombc.dat.1 file''

'''cp ~/develop/phasta/wallshearC/wallshearC/input.config .''' 

'''cp ~/develop/phasta/wallshearC/wallshearC/solver.inp .'''  ''input.config and solver.inp here have no real meanings, the only reason is that the code need to read them''

'''ln -s ../ybar.352000-372000.0 ybar.372000.0 '''  ''create a softlink of the ybar file, notice that the link only takes the final time step in the file name''

'''echo 372000 > numstart.dat'''  

'''echo 1 > itagybar.dat'''   ''tell the code to extract wss from the ybar file ''

'''mpirun ~/develop/phasta/wallshearC/wallshearC/bin/x86_64_linux-icc/wallshearC.exe-openmpi > dumpWSS.log  2>&1 & '''   ''run the code''

tail -f dumpWSS.log

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[Incompressible Flow]

It is easy to do but I need some time to test it. Michele might have a working version.


'''You are strongly encouraged to build the code under your own directory, probably together with the phSolver toolsets using CMake.''' 

--[[User:Ychen|Ychen]] 13:14, 26 July 2012 (MDT)