Capillary driven flow. Macromodel

alexlpn · December 8, 2014, 09:53

Hello everyone.
Can someone help me with information about capillary driven flow modelling in CFX? I am looking for some step by step simple tutorial about rectangular speciment saturation.

The exact capillary effect in one vessel is wellknow but how to make macromodel.

The input parameters should include porosity and permeability.

Any suggestions? Thanks

ghorrocks · December 8, 2014, 18:46

No step by step tutorials exist.

Are you talking about free surface/capillary modelling in general, or capillary flow in porous media?

alexlpn · December 9, 2014, 04:22

Quote:

Originally Posted by ghorrocks

No step by step tutorials exist.

Are you talking about free surface/capillary modelling in general, or capillary flow in porous media?

Thank you for reply.

I am interested axactly in capillary flow in porous media. But when I am trying to simulate it I always find the ways when I need to valuate pressure or flow speed as boundary condition for inlet. For my problem of saturation I dont know the value of pressure or flow speed. I know just that part of boundary is wet (fluid fracture = 1) and thats all.

December 8, 2014, 09:53	Capillary driven flow. Macromodel	#1
alexlpn New Member Alex Mendes Join Date: Jan 2013 Posts: 6 Rep Power: 13	Hello everyone. Can someone help me with information about capillary driven flow modelling in CFX? I am looking for some step by step simple tutorial about rectangular speciment saturation. The exact capillary effect in one vessel is wellknow but how to make macromodel. The input parameters should include porosity and permeability. Any suggestions? Thanks

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December 8, 2014, 18:46		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	No step by step tutorials exist. Are you talking about free surface/capillary modelling in general, or capillary flow in porous media?