|
[Sponsors] |
August 9, 2010, 17:51 |
Resolving Velocity Magnitudes with Probes
|
#1 |
Member
Join Date: Jul 2010
Posts: 37
Rep Power: 16 |
Hi again. I wish to use OpenFOAM to calculate velocity magnitudes in the flow field with respect to time however I have only been able to code for the two respective points below to resolve the u, v and w components which I would rather not have to post-process. I think that the magnitudes need to be calculated and then magU used but I haven't seen this explicitly coded elsewhere on some google searches. Any help would be appreciated, if I haven't explained myself clearly enough then let me know!
Thanks. Code:
FoamFile { version 2.0; format ascii; class dictionary; location "system"; object controlDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // application icoFoam; startFrom startTime; startTime 0; stopAt endTime; endTime 0.02; deltaT 0.0001; writeControl timeStep; writeInterval 10; purgeWrite 0; writeFormat ascii; writePrecision 12; writeCompression uncompressed; timeFormat general; timePrecision 12; runTimeModifiable yes; libs ( "libOpenFOAM.so" "libgroovyBC.so" ) ; functions { probes { type probes; functionObjectLibs ("libsampling.so"); enabled true; outputControl timeStep; outputInterval 10; probeLocations ( ( 1 10 0.5 ) ( 2 2 0.5 ) ); fields ( U ); } } |
|
August 9, 2010, 18:56 |
|
#2 |
Senior Member
Srinath Madhavan (a.k.a pUl|)
Join Date: Mar 2009
Location: Edmonton, AB, Canada
Posts: 703
Rep Power: 21 |
There was a utility called magU in OpenFOAM. Not sure whether it is still around. Just try typing magU and see what happens. If it does exist, then either magU or it's source should tell you how to proceed. Good Luck!
|
|
August 9, 2010, 19:16 |
|
#3 |
Member
Join Date: Jul 2010
Posts: 37
Rep Power: 16 |
Thanks, I tried that already but it seems to ignore the magU and persists as though it was U. I was thinking that this may have been because I haven't correctly calculated the magU's beforehand though!
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Unbelievably high velocity magnitudes in film cooling - HELP! | shankara.2 | FLUENT | 0 | June 1, 2009 23:43 |
Velocity in Porous medium : HELP! HELP! HELP! | Kali Sanjay | Phoenics | 0 | November 6, 2006 07:10 |
OpenFOAM with Cygwin | kitchener | OpenFOAM Installation | 6 | April 25, 2006 00:09 |
Variables Definition in CFX Solver 5.6 | R P | CFX | 2 | October 26, 2004 03:13 |
Terrible Mistake In Fluid Dynamics History | Abhi | Main CFD Forum | 12 | July 8, 2002 10:11 |