|
[Sponsors] |
May 16, 2014, 11:02 |
fast way to probe many points?
|
#1 |
Senior Member
Eloïse
Join Date: Jul 2012
Location: Trondheim, Norway
Posts: 113
Rep Power: 14 |
Hello,
I need to probe many points (order of 10 000) at the end of my simulation. I am currently using the function "probe" in my controlDict, with outputTime at the end of the simulation. It works fine, but it introduce a delay of several hours before the solver actually starts (~10 million cells mesh, running on 64 cores). Therefore, I'm looking for a faster way to probe all those points. Does someone have experience with that? Thanks for your help! Eloïse |
|
May 17, 2014, 13:55 |
|
#2 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,978
Blog Entries: 45
Rep Power: 128 |
Hi Eloïse,
I assume you're using something similar to the example at "src/sampling/probes/probesDict" and also available at "applications/utilities/postProcessing/sampling/probeLocations/probesDict"? Have you tried the "cloud" set type for the sampling mechanism, instead of the probes? A full example is given at "applications/utilities/postProcessing/sampling/sample/sampleDict". You need to be more careful with this one, since it has interpolation options; because I'm not sure if the probe function object has interpolation options. The other possibility is to simply use the utility probeLocations in parallel, after the solver as finished. Best regards, Bruno
__________________
|
|
May 19, 2014, 05:32 |
|
#3 |
Senior Member
Eloïse
Join Date: Jul 2012
Location: Trondheim, Norway
Posts: 113
Rep Power: 14 |
Hello Bruno,
Thanks for your answer! I was actually using this code in my controlDict: Code:
functions { probes { type probes; // Where to load it from functionObjectLibs ("libsampling.so"); // Name of the directory for probe data name probes; // Write at every timestep outputControl outputTime; // Fields to be probed fields ( UMean ); probeLocations ( (-20.612 -25.399 -87.200) ); } } Best regards, Eloïse |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[snappyHexMesh] No layers in a small gap | bobburnquist | OpenFOAM Meshing & Mesh Conversion | 6 | August 26, 2015 09:38 |
[DesignModeler] DM's JScript: FPoint()'s GetPoint(i) function picks points backwards? | ANT | ANSYS Meshing & Geometry | 2 | July 23, 2012 15:25 |
[OpenFOAM] Probe Multiple Points in ParaView and Output as CSV | eric.m.tridas | ParaView | 4 | November 29, 2011 13:30 |
Multiple probe points | oyvinl | CFX | 1 | February 21, 2011 20:36 |
[blockMesh] BlockMeshmergePatchPairs | hjasak | OpenFOAM Meshing & Mesh Conversion | 11 | August 15, 2008 07:36 |