interface len. scale

rasool motamedi · June 1, 2013, 07:35

hi
I am simulating multifase flow in channel
I can not understand what is interface len. scale
please help me

ghorrocks · June 1, 2013, 08:05

This is described in the documentation - have you read it?

The multiphase flow is assumed to be droplets or bubbles. Either way they are charaterised by a diameter, or at least a representative diameter. This is the interface length scale.

rasool motamedi · June 2, 2013, 15:28

hi
thanks you
I have read theory guide
I am mixing to fluid with water properties symmetrically
can i use below formula?
Untitled.jpg
mean diometer of water is 10 micron
r=?
maybe r=0.5

June 1, 2013, 07:35	interface len. scale	#1
rasool motamedi Member rasool Join Date: Apr 2013 Posts: 41 Rep Power: 13	hi I am simulating multifase flow in channel I can not understand what is interface len. scale please help me

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June 1, 2013, 08:05		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	This is described in the documentation - have you read it? The multiphase flow is assumed to be droplets or bubbles. Either way they are charaterised by a diameter, or at least a representative diameter. This is the interface length scale.

June 2, 2013, 15:28		#3
rasool motamedi Member rasool Join Date: Apr 2013 Posts: 41 Rep Power: 13	hi thanks you I have read theory guide I am mixing to fluid with water properties symmetrically can i use below formula? Untitled.jpg mean diometer of water is 10 micron r=? maybe r=0.5