paticle retention time& velocity oscilations

Je5u5 · June 14, 2016, 16:04

Hello.
i have a model.
how do i get information about the particle retention time or about the velocity oscillations?

`e` · June 14, 2016, 18:13

The particle residence time should be available from Fluent's GUI, but you can use this value in UDFs with:

Code:

P_TIME(p) - P_TIME0(p)

and either export the particle data to CFD-Post for postprocessing to calculate the velocity oscillations or write a UDF to calculate the oscillations (do you mean the velocity fluctuations due to turbulence?).

June 14, 2016, 16:04	paticle retention time& velocity oscilations	#1
Je5u5 New Member Viktor Join Date: Feb 2016 Posts: 8 Rep Power: 10	Hello. i have a model. how do i get information about the particle retention time or about the velocity oscillations?

June 14, 2016, 18:13		#2
`e` Senior Member Join Date: Mar 2015 Posts: 892 Rep Power: 18	The particle residence time should be available from Fluent's GUI, but you can use this value in UDFs with: Code: P_TIME(p) - P_TIME0(p) and either export the particle data to CFD-Post for postprocessing to calculate the velocity oscillations or write a UDF to calculate the oscillations (do you mean the velocity fluctuations due to turbulence?).

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