Difference between revisions of "Benchmark ercoftac ufr2-02"
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The Strouhal number is around 0.132<br> | The Strouhal number is around 0.132<br> | ||
Drag coefficient is around 1.9-2.2<br> | Drag coefficient is around 1.9-2.2<br> | ||
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+ | [[File:urf2-02-Cd.png | 300px | OpenFOAM results ]] | ||
== Notes == | == Notes == |
Revision as of 06:19, 10 May 2010
Contents
1 ERCOFTAC UFR 2-02: Flow past a square cylinder
1.1 Description
For a full description of the case see:
http://qnet-ercoftac.cfms.org.uk/index.php?title=Flow_past_cylinder
U_in = 0.54 m/s with 2% turbulence
Re_D = 22 000
Size of the square cylinder is 0.04 m wide and 0.392 m high.
Its situated in a tunnel with a width of 14D = 0.56 m.
1.2 Results
Experimental values are:
The Strouhal number is around 0.132
Drag coefficient is around 1.9-2.2
1.3 Notes
In the case directory there is a perl script called generateMeshDict.pl.
This script will generate the blockMeshDict file given input arguments. To see what they are just run it without any input arguments and
it will write some helpful usage info.
If you want to run a 2D simulation just edit the generateMeshDict.pl and remove the comment infront of $nz.
my $nz = int(0.2*$H1/$dx) + 1; #$nz = 1;
and change the wall bc to empty for lowerUpper patches
print " wall lowerUpper\n";
1.4 Download
The application to use is pisoFoam and the case can be downloaded here
1.5 References
This list only contains references that can be obtained for free and that are not subject to any copyright infringement...I hope.
- http://www.tfd.chalmers.se/~lada/postscript_files/ahmad_corsica.pdf
- http://www.tfd.chalmers.se/~lada/postscript_files/ahmad_ASME-JSME_paper.pdf
It is just a small list that is by no means complete.
--Niklas 13:29, 24 April 2010 (UTC)