Solid-Liquid Suspensions

mech-engineer · June 9, 2012, 10:34

Hi every all
I want simulate solid-liquid suspension via Eulerian-Eulerian method in CFX.Which of the below models are appropriate for this work?
1)Continuous Fluid (for liquid)-Continuous Fluid (for solid)
2)Continuous Fluid (for liquid)-Dispersed Fluid (for solid)
3)Continuous Fluid (for liquid)-Dispersed Solid (for solid)

ghorrocks · June 11, 2012, 20:16

Obviously option 3. Options 1 and 2 model the solids as a liquid and are therefore not appropriate.

ghorrocks · June 11, 2012, 20:17

But if this is in reference to your other post about nano particles then the answer is none of them are appropriate.

mech-engineer · June 12, 2012, 04:15

Yes,this answer refer to modeling of nanofluid via Eulerian-Eulerian method and since,Eulerian-Eulerian method is a two-fluid model,therefore i think,it's better to simulate both phases as continuous fluid.What is your opinion?

ghorrocks · June 12, 2012, 19:46

I have already written my opinion so many times I am getting sick of saying it yet again. You cannot model nanoparticles as a multi-phase model. They cannot be considered a phase. So forget about eular-eular multiphase models and use an approach suitable for nanoparticles.

June 9, 2012, 10:34	Solid-Liquid Suspensions	#1
mech-engineer New Member Behzad Join Date: Jun 2012 Posts: 26 Rep Power: 13	Hi every all I want simulate solid-liquid suspension via Eulerian-Eulerian method in CFX.Which of the below models are appropriate for this work? 1)Continuous Fluid (for liquid)-Continuous Fluid (for solid) 2)Continuous Fluid (for liquid)-Dispersed Fluid (for solid) 3)Continuous Fluid (for liquid)-Dispersed Solid (for solid)

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June 11, 2012, 20:16		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	Obviously option 3. Options 1 and 2 model the solids as a liquid and are therefore not appropriate.

June 11, 2012, 20:17		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	But if this is in reference to your other post about nano particles then the answer is none of them are appropriate.

June 12, 2012, 04:15		#4
mech-engineer New Member Behzad Join Date: Jun 2012 Posts: 26 Rep Power: 13	Yes,this answer refer to modeling of nanofluid via Eulerian-Eulerian method and since,Eulerian-Eulerian method is a two-fluid model,therefore i think,it's better to simulate both phases as continuous fluid.What is your opinion?

June 12, 2012, 19:46		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	I have already written my opinion so many times I am getting sick of saying it yet again. You cannot model nanoparticles as a multi-phase model. They cannot be considered a phase. So forget about eular-eular multiphase models and use an approach suitable for nanoparticles.