dnesity and phase separation -- CFD Online Discussion Forums

July 12, 2011, 13:30	dnesity and phase separation	#1
JACZ New Member J_A Join Date: Feb 2010 Posts: 7 Rep Power: 16	Hi . I am working with a porous media simulating a drainage of oil in a porous media filled by water. But I found that if I use a low density oil, CFX hold the 2 phases segregated, but when I use an oil with a higer density (near of the water value) after some time ( in transient simulation), the 2 phases are mixed. What is happening? (the gravity is not defined) Thanks and sorry by my english Model : Laminar B.C: Vel in, Pressure out 2D Courant lower than 0.7

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