vof

hamid1 · July 12, 2012, 10:23

Hi

i am modeling two phase flow via vof, the problem is by increasing the mesh density the meniscous movement speed of the second phase decreases,
unfortunatly i can not increase the mesh density for my simulations,
any suggestion would be so much appreciated
thanks
Hamid

hamid1 · July 12, 2012, 11:26

this is very urgent question, can anybody help me, even some clues ...

shuai_manlou · July 13, 2012, 07:37

what is the meaning of meniscous, I cannot figure it out in google ~

Jabba · July 13, 2012, 16:04

Quote:

Originally Posted by shuai_manlou

what is the meaning of meniscous, I cannot figure it out in google ~

Please, describe the problem in details, if possible.

kbaker · July 16, 2012, 16:24

What you meaning with mesh density? did you mean with it mesh quality as make it finer? what you tried to predict from your study?

hamid1 · July 17, 2012, 06:34

sorry guys for late reply, by meniscus i mean the movement and shape of interface the second phase during the time advancement ..
i could figure out, the solution is to be sure of convergence, so it is needed to give time to the simulation to iterate more per time step ...

kbaker · July 18, 2012, 15:41

What type of flow regime you working with? Did you want to plot history of your interface with time? Your question is vague furthermore weak english used in it.

July 12, 2012, 10:23	vof	#1
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	Hi i am modeling two phase flow via vof, the problem is by increasing the mesh density the meniscous movement speed of the second phase decreases, unfortunatly i can not increase the mesh density for my simulations, any suggestion would be so much appreciated thanks Hamid

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July 12, 2012, 11:26		#2
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	this is very urgent question, can anybody help me, even some clues ...

July 13, 2012, 07:37		#3
shuai_manlou Member CAO Liushuai Join Date: Apr 2012 Posts: 30 Rep Power: 14	what is the meaning of meniscous, I cannot figure it out in google ~

July 16, 2012, 16:24		#5
kbaker Senior Member Khalid Baker Join Date: Mar 2009 Location: IRAQ Posts: 168 Rep Power: 17	What you meaning with mesh density? did you mean with it mesh quality as make it finer? what you tried to predict from your study?

July 17, 2012, 06:34		#6
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	sorry guys for late reply, by meniscus i mean the movement and shape of interface the second phase during the time advancement .. i could figure out, the solution is to be sure of convergence, so it is needed to give time to the simulation to iterate more per time step ...

July 18, 2012, 15:41		#7
kbaker Senior Member Khalid Baker Join Date: Mar 2009 Location: IRAQ Posts: 168 Rep Power: 17	What type of flow regime you working with? Did you want to plot history of your interface with time? Your question is vague furthermore weak english used in it.