Difference between revisions of "PHASTA/Extract Wall Shear Stress"

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[Compressible Flow]
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==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?
 
How to extract the wall shear stress (wss) vectors from the ybar file containing time-averaged statistics or the restart file containing instantaneous solutions?
  
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2. Run the following command one by one
 
2. Run the following command one by one
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<code>mkdir wss</code>  ''create a new directory to put the wss vtk file''
  
'''mkdir wss'''  ''create a new directory to put the wss vtk file''
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<code>cd wss</code>
 
 
'''cd wss'''
 
 
 
'''ln -s ../geombc.dat.1'''  ''create a softlink of the geombc.dat.1 file''
 
  
'''cp /users/ychen/develop/phasta/wallshearC/wallshearC/input.config .'''  
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<code>ln -s ../geombc.dat.1</code>  ''create a softlink of the geombc.dat.1 file''
  
'''cp /users/ychen/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''
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<code>cp /users/ychen/develop/phasta/wallshearC/wallshearC/input.config .</code>
  
'''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''
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<code>cp /users/ychen/develop/phasta/wallshearC/wallshearC/solver.inp .</code> ''input.config and solver.inp here have no real meanings, the only reason is that the code need to read them''
  
or '''ln -s ../restart.372000.0''' ''if we are extracting wss from the solution field of the restart file''
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<code>ln -s ../ybar.352000-372000.0 ybar.372000.0 </code> ''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'''
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or <code>ln -s ../restart.372000.0</code> ''if we are extracting wss from the solution field of the restart file''
  
'''echo 1 > itagybar.dat'''  ''tell the code to extract wss from the ybar file ''
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<code>echo 372000 > numstart.dat</code
  
'''mpirun /users/ychen/develop/phasta/wallshearC/wallshearC/bin/x86_64_linux-icc/wallshearC.exe-openmpi > dumpWSS.log  2>&1 & '''   ''run the code''
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<code>echo 1 > itagybar.dat</code>  ''tell the code to extract wss from the ybar file ''
  
tail -f dumpWSS.log
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<code>mpirun /users/ychen/develop/phasta/wallshearC/wallshearC/bin/x86_64_linux-icc/wallshearC.exe-openmpi > dumpWSS.log 2>&1 & </code>  ''run the code''
  
=============================================================================================================================
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<code>tail -f dumpWSS.log</code>
  
[Incompressible Flow]
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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.
 
It is easy to do but I need some time to test it. Michele might have a working version.
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--[[User:Ychen|Ychen]] 13:14, 26 July 2012 (MDT)
 
--[[User:Ychen|Ychen]] 13:14, 26 July 2012 (MDT)
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[[Category:PHASTA]] [[Category:Post-processing]]

Latest revision as of 10:50, 18 September 2022

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 /users/ychen/develop/phasta/wallshearC/wallshearC/input.config .

cp /users/ychen/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

or ln -s ../restart.372000.0 if we are extracting wss from the solution field of the restart file

echo 372000 > numstart.dat

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

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

tail -f dumpWSS.log

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.

--Ychen 13:14, 26 July 2012 (MDT)