Virtual Particles

Vinzent · October 25, 2010, 03:29

Hello,

in a transient FSI-Siulation with free surface I want to visualize the changing flow over a weir. I´d like to show a few virtual particles swiming in the water in a impressive video. Is a full partickle tracking setup necessary? Or can I use my existing transient results without particle setup? Is POST possibly smart enough to calculate the tracks?
What is the easiest way?

Vinzent

ghorrocks · October 25, 2010, 05:11

Post cannot do transient particle tracking as post-processing. I think Fieldview and/or Ensight might be able to providing you have enough resolution in your output files. Post can do streamlines which are steady state massless particle tracks but I guess that is not what you want.

You should be able to do massless particles in the solver. Massless particles are much simpler than full particle tracking as they have no inertia or drag and do not couple back to the flow so are mathematically very simple. I can't remember how to set them up and don't know if they are compatible with your other options but you should at least look them up in the doco to see if it helps.

October 25, 2010, 03:29	Virtual Particles	#1
Vinzent New Member Join Date: Jul 2010 Posts: 22 Rep Power: 15	Hello, in a transient FSI-Siulation with free surface I want to visualize the changing flow over a weir. I´d like to show a few virtual particles swiming in the water in a impressive video. Is a full partickle tracking setup necessary? Or can I use my existing transient results without particle setup? Is POST possibly smart enough to calculate the tracks? What is the easiest way? Vinzent

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Could you please help me about the VTKFoam	liugx212	OpenFOAM Pre-Processing	5	February 13, 2008 11:31
OpenFoam 14 installation problem	gfcoppola	OpenFOAM Installation	20	November 2, 2007 13:38
[OpenFOAM] Could you please help me	liugx212	ParaView	4	December 22, 2005 16:55
[OpenFOAM] LibvtkFoamso	fred	ParaView	2	November 18, 2005 19:01
Please help about the VTKFoam	liugx212	OpenFOAM Running, Solving & CFD	0	November 18, 2005 18:27

October 25, 2010, 05:11		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Post cannot do transient particle tracking as post-processing. I think Fieldview and/or Ensight might be able to providing you have enough resolution in your output files. Post can do streamlines which are steady state massless particle tracks but I guess that is not what you want. You should be able to do massless particles in the solver. Massless particles are much simpler than full particle tracking as they have no inertia or drag and do not couple back to the flow so are mathematically very simple. I can't remember how to set them up and don't know if they are compatible with your other options but you should at least look them up in the doco to see if it helps.