dyn. viscosity as a function of particle Temp.

July 6, 2006, 10:48

Hi all,

I would like to create a dyn. viscosity of my liquid particles as a function of the particle temperature. Has anybody experience with this? I am using CFX 10.0 and a lagrangian particle model. Is it possible to solve this problem without using fortran subroutines? If yes how can I find out the variablename of the particle Temperature?

Cheers, Felix

July 7, 2006, 00:14

hi just explain ur problem clearly what ur simulating exactly

July 7, 2006, 03:19

I am simulating the motion of liquid and inert particles with a diameter of 0.1 micron in a gas flow. You can define a value for the dyn. viscosity in the "material properties" -> "Transport properties" settings. And I want to create a function for this dyn. viscosity which depends on the particle temperature. The background of my question is that I would like to associate the perpendicular/parallel coefficient with that dyn. viscosity to obtain a behaviour for the stickiness of the particles. Do you need more information?

Felix

July 6, 2006, 10:48	dyn. viscosity as a function of particle Temp.	#1
Felix Guest Posts: n/a	Hi all, I would like to create a dyn. viscosity of my liquid particles as a function of the particle temperature. Has anybody experience with this? I am using CFX 10.0 and a lagrangian particle model. Is it possible to solve this problem without using fortran subroutines? If yes how can I find out the variablename of the particle Temperature? Cheers, Felix

July 7, 2006, 00:14	Re: dyn. viscosity as a function of particle Temp.	#2
vipin Guest Posts: n/a	hi just explain ur problem clearly what ur simulating exactly

July 7, 2006, 03:19	Re: dyn. viscosity as a function of particle Temp.	#3
Felix Guest Posts: n/a	I am simulating the motion of liquid and inert particles with a diameter of 0.1 micron in a gas flow. You can define a value for the dyn. viscosity in the "material properties" -> "Transport properties" settings. And I want to create a function for this dyn. viscosity which depends on the particle temperature. The background of my question is that I would like to associate the perpendicular/parallel coefficient with that dyn. viscosity to obtain a behaviour for the stickiness of the particles. Do you need more information? Felix

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Version 15 on Mac OS X	gschaider	OpenFOAM Installation	113	December 2, 2009 10:23
Droplet Evaporation	Christian	Main CFD Forum	2	February 27, 2007 06:27
Casson Viscosity model as one user define function	Zahra Rahmdel	FLUENT	0	November 6, 2004 05:53
Why tne viscosity in LBM have tunning function?	TSYen	Main CFD Forum	0	October 25, 2004 20:54
Density of liquid Sapphire as function of temp.	J.W.Ryu	FLUENT	0	September 8, 2003 02:24