Velocity Inlet BC-VOF

November 6, 2007, 04:57

hi I m modeling an open channel problem in fluent 6.1.22 I have two inlets specified as velocity inlets My question is that, at inlet i want only water to flow through the whole crossection not the air and water mixture... to do this shall i specify VOLUME FRACTION FOR AIR=0 at velocity inlet ?? THanks

November 11, 2007, 02:42

I think it's ok.You can choose the water as the primary phase,then set the Volume Fraction of the second phase to 0.

November 12, 2007, 01:42

thanks for the reply..\ can you please tell me that what can i do to specify the water depth at outlet...in vof i'm using fluent 6.1.2

November 12, 2007, 21:16

If you kown the depth of water at outlet,you can draw different outlet for air and water in gambit,then export to fluent6.1.Fluent 6.2 or 6.3 can specialfy the level of water easily by choose the "Open channel flow".

November 13, 2007, 01:43

Thanks... I'll try that

November 6, 2007, 04:57	Velocity Inlet BC-VOF	#1
Muhammad Umar Guest Posts: n/a	hi I m modeling an open channel problem in fluent 6.1.22 I have two inlets specified as velocity inlets My question is that, at inlet i want only water to flow through the whole crossection not the air and water mixture... to do this shall i specify VOLUME FRACTION FOR AIR=0 at velocity inlet ?? THanks

November 11, 2007, 02:42	Re: Velocity Inlet BC-VOF	#2
rodi Guest Posts: n/a	I think it's ok.You can choose the water as the primary phase,then set the Volume Fraction of the second phase to 0.

November 12, 2007, 01:42	Re: Velocity Inlet BC-VOF	#3
Umm Guest Posts: n/a	thanks for the reply..\ can you please tell me that what can i do to specify the water depth at outlet...in vof i'm using fluent 6.1.2

November 12, 2007, 21:16	Re: Velocity Inlet BC-VOF	#4
rodi Guest Posts: n/a	If you kown the depth of water at outlet,you can draw different outlet for air and water in gambit,then export to fluent6.1.Fluent 6.2 or 6.3 can specialfy the level of water easily by choose the "Open channel flow".

November 13, 2007, 01:43	Re: Velocity Inlet BC-VOF	#5
Umm.. Guest Posts: n/a	Thanks... I'll try that

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