two different two phase model

hamid1 · September 26, 2011, 07:10

Hi
do u think its possible to use desceret particle model ( injection of water in fluid1) and vof model (fluid1 is in fluid2) at the same time in a domain ?
thank you

bohis · September 26, 2011, 10:49

yes, it is possible, as a matter of fact manual also says so...

hamid1 · September 26, 2011, 10:59

Hi
Thank you for reply, is it in help or user guide?

bohis · September 26, 2011, 11:06

user guide, but there is just a remark that it is possible. It depends on what you want to simulate...

hamid1 · September 26, 2011, 12:23

hi,
that is like injection of water in a two phase flow (fluid 2 and fluid 3 while fluid 2 and 3 are modeled with VOF)

bohis · September 27, 2011, 04:18

then u need to write some UDF to provide coupling between DPM and VOF.

hamid1 · September 30, 2011, 05:26

thank you, but could u explain a little bit more..

bohis · September 30, 2011, 06:03

u did not described your problem in details, for this reason nobody here can help you here.
From my point of view, I can only tell you a general rule:

1) write UDF to for mass, momentum, energy transfer from DPM to VOF
2) make sure that everything is conserved (no sinks, sources)

hamid1 · September 30, 2011, 08:53

thank u for the clue..
the problem is injecting water in the domain of two fluids (fluid2 and fluid 3),
the domain is a pipe.. fluid 2 and fluid 3 are modeled with VOF and the injection of water is modeled by DPM,

September 26, 2011, 07:10	two different two phase model	#1
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	Hi do u think its possible to use desceret particle model ( injection of water in fluid1) and vof model (fluid1 is in fluid2) at the same time in a domain ? thank you

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September 26, 2011, 10:49		#2
bohis New Member Join Date: Mar 2009 Posts: 15 Rep Power: 17	yes, it is possible, as a matter of fact manual also says so...

September 26, 2011, 10:59		#3
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	Hi Thank you for reply, is it in help or user guide?

September 26, 2011, 11:06		#4
bohis New Member Join Date: Mar 2009 Posts: 15 Rep Power: 17	user guide, but there is just a remark that it is possible. It depends on what you want to simulate...

September 26, 2011, 12:23		#5
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	hi, that is like injection of water in a two phase flow (fluid 2 and fluid 3 while fluid 2 and 3 are modeled with VOF)

September 27, 2011, 04:18		#6
bohis New Member Join Date: Mar 2009 Posts: 15 Rep Power: 17	then u need to write some UDF to provide coupling between DPM and VOF.

September 30, 2011, 05:26		#7
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	thank you, but could u explain a little bit more..

September 30, 2011, 06:03		#8
bohis New Member Join Date: Mar 2009 Posts: 15 Rep Power: 17	u did not described your problem in details, for this reason nobody here can help you here. From my point of view, I can only tell you a general rule: 1) write UDF to for mass, momentum, energy transfer from DPM to VOF 2) make sure that everything is conserved (no sinks, sources)

September 30, 2011, 08:53		#9
hamid1 Senior Member hamid Join Date: Nov 2010 Posts: 185 Rep Power: 15	thank u for the clue.. the problem is injecting water in the domain of two fluids (fluid2 and fluid 3), the domain is a pipe.. fluid 2 and fluid 3 are modeled with VOF and the injection of water is modeled by DPM,