Placing second fluid in OpenFOAM.

vivek070176 · June 30, 2011, 06:15

Hye,

Considering dam break case, i changed the location of water column and placed it as shown below. I want to place another fluid at the bottom of it, what changes do i need to do?

Thanks
Vivek

vivek070176 · June 30, 2011, 06:22

Please see the attachment for the position of fluid.

Arnoldinho · June 30, 2011, 06:37

The dam break case is a tutorial for the interFoam solver, which works for two fluids (e.g. water and air). If you want another, third fluid, you will need a different multiphase solver.

vivek070176 · June 30, 2011, 06:39

Thank you for the reply.

But, instead of air i want to place another fluid which has density little less than water at the bottom of it. How to do that?
I am talking of two fluids water and say oil.

Vivek

nimasam · June 30, 2011, 09:29

you can have just two fluids and no vacuum! if you want to change properties look at transportproperties at constant folder!

wouter · June 30, 2011, 18:33

Vivek

look in tutorials/multiphase/multiphaseInterFoam/laminar/damBreak4phase

there is an example how to set up OpenFoam for four phases
I have not tried to make it three, maybe this is possible as well.

Best
Wouter

June 30, 2011, 06:15	Placing second fluid in OpenFOAM.	#1
vivek070176 Member Vivek Gupta Join Date: May 2010 Posts: 36 Rep Power: 15	Hye, Considering dam break case, i changed the location of water column and placed it as shown below. I want to place another fluid at the bottom of it, what changes do i need to do? Thanks Vivek

June 30, 2011, 18:33		#6
wouter Senior Member Wouter van der Meer Join Date: May 2009 Location: Elahuizen, Netherlands Posts: 203 Rep Power: 17	Vivek look in tutorials/multiphase/multiphaseInterFoam/laminar/damBreak4phase there is an example how to set up OpenFoam for four phases I have not tried to make it three, maybe this is possible as well. Best Wouter Last edited by wouter; June 30, 2011 at 18:35. Reason: leftout a multiphase

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June 30, 2011, 06:37		#3
Arnoldinho Senior Member Arne Stahlmann Join Date: Nov 2009 Location: Hanover, Germany Posts: 209 Rep Power: 17	The dam break case is a tutorial for the interFoam solver, which works for two fluids (e.g. water and air). If you want another, third fluid, you will need a different multiphase solver.

June 30, 2011, 06:39		#4
vivek070176 Member Vivek Gupta Join Date: May 2010 Posts: 36 Rep Power: 15	Thank you for the reply. But, instead of air i want to place another fluid which has density little less than water at the bottom of it. How to do that? I am talking of two fluids water and say oil. Vivek

June 30, 2011, 09:29		#5
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,266 Blog Entries: 1 Rep Power: 24	you can have just two fluids and no vacuum! if you want to change properties look at transportproperties at constant folder!