CFD Post Streamlines better representation?

Dr. Flow Squad · January 16, 2014, 06:52

Hi.
I have always thought that the streamlines in ANSYS CFD Post, looks too un-natural. I would like to changes the reprensentation to be more realistic. I have attached two videos showing what CFD Post looke like, and what I want to have:
ANSYS CFD Post Streamlines with symbols
What I want to have. A stream of continuing particles starting from different points

Anyone know if it can be done in CFD Post?

ghorrocks · January 16, 2014, 08:14

The difference appears to be your CFD-Post animation has the particles released over an area simultaneous versus a continuous random distribution. So is your question how do you seed the streamline particles with a continuous random distribution?

Not sure off the top of my head - you might have to use a session file to generate a pseudo-random sequence over the starting patch - that is, have the "random" sequence hard coded in a script. You might be able to use the random function in perl to generate this.

brunoc · January 20, 2014, 14:48

Quote:

Originally Posted by Dr. Flow Squad

Anyone know if it can be done in CFD Post?

No, but you can disable the streams themselves and keep only the "particles"/symbols visible, and also decrease the delta between particle release to get something closer to what you want. Those options are 'Symbol > Show Streams' and 'Symbol > Interval' on the streamline details.

January 16, 2014, 06:52	CFD Post Streamlines better representation?	#1
Dr. Flow Squad New Member Dr. Flow Squad Join Date: Mar 2009 Posts: 17 Rep Power: 17	Hi. I have always thought that the streamlines in ANSYS CFD Post, looks too un-natural. I would like to changes the reprensentation to be more realistic. I have attached two videos showing what CFD Post looke like, and what I want to have: ANSYS CFD Post Streamlines with symbols What I want to have. A stream of continuing particles starting from different points Anyone know if it can be done in CFD Post?

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January 16, 2014, 08:14		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	The difference appears to be your CFD-Post animation has the particles released over an area simultaneous versus a continuous random distribution. So is your question how do you seed the streamline particles with a continuous random distribution? Not sure off the top of my head - you might have to use a session file to generate a pseudo-random sequence over the starting patch - that is, have the "random" sequence hard coded in a script. You might be able to use the random function in perl to generate this.