# two different two phase model

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 September 26, 2011, 07:10 two different two phase model #1 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 6 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

 September 26, 2011, 10:49 #2 New Member   Join Date: Mar 2009 Posts: 15 Rep Power: 8 yes, it is possible, as a matter of fact manual also says so...

 September 26, 2011, 10:59 #3 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 6 Hi Thank you for reply, is it in help or user guide?

 September 26, 2011, 11:06 #4 New Member   Join Date: Mar 2009 Posts: 15 Rep Power: 8 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 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 6 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 New Member   Join Date: Mar 2009 Posts: 15 Rep Power: 8 then u need to write some UDF to provide coupling between DPM and VOF.

 September 30, 2011, 05:26 #7 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 6 thank you, but could u explain a little bit more..

 September 30, 2011, 06:03 #8 New Member   Join Date: Mar 2009 Posts: 15 Rep Power: 8 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 Senior Member   hamid Join Date: Nov 2010 Posts: 185 Rep Power: 6 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,

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