Mixing water and air

miroslavgojic · January 24, 2012, 01:30

What I should use to simulate mixing water and air; Fluent or CFX?

I have two pipes, in first is water and in second is air.
Pipes go to chamber for mixing and from chamber go out to empty space...

ComputerGuy · January 24, 2012, 18:04

My advice is for a simple system like that, use the one you're most comfortable with. Depending on your version (I think), the process for geometry creation and meshing should be similar.

Fluent will be fine for simulating this system; what are you trying to determine?

ComputerGuy

miroslavgojic · January 25, 2012, 00:49

The meshing is same or almost same for CFX and Fluent and my version is 13.

I have atomizer with complex geometry,

I need to get dissipation field on out (outlet) from atomizer.

I have some questions:
- How much bodies and part I need to have - can I use one part and one body or more parts and bodies?
- How to define two fluid inlets, and how to define empty space for out from atomizer ?
- In Fluent in Models what options I should use ... (Energy ||/& Viscous ||/& Mixture ||/& ...) and what is good practice with this Model ?
- How to define mixing chamber - empty space or fluid
- How to get results in 3D? Now I can get only my results in symmetry plane.

I'm new with CFD and any help will be good...

Thanks

Miroslav

January 24, 2012, 01:30	Mixing water and air	#1
miroslavgojic New Member Miroslav Gojic Join Date: Dec 2011 Posts: 2 Rep Power: 0	What I should use to simulate mixing water and air; Fluent or CFX? I have two pipes, in first is water and in second is air. Pipes go to chamber for mixing and from chamber go out to empty space...

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January 24, 2012, 18:04		#2
ComputerGuy Senior Member Real Name :) Join Date: Jan 2010 Location: United States Posts: 192 Rep Power: 16	My advice is for a simple system like that, use the one you're most comfortable with. Depending on your version (I think), the process for geometry creation and meshing should be similar. Fluent will be fine for simulating this system; what are you trying to determine? ComputerGuy

January 25, 2012, 00:49		#3
miroslavgojic New Member Miroslav Gojic Join Date: Dec 2011 Posts: 2 Rep Power: 0	The meshing is same or almost same for CFX and Fluent and my version is 13. I have atomizer with complex geometry, I need to get dissipation field on out (outlet) from atomizer. I have some questions: - How much bodies and part I need to have - can I use one part and one body or more parts and bodies? - How to define two fluid inlets, and how to define empty space for out from atomizer ? - In Fluent in Models what options I should use ... (Energy \|\|/& Viscous \|\|/& Mixture \|\|/& ...) and what is good practice with this Model ? - How to define mixing chamber - empty space or fluid - How to get results in 3D? Now I can get only my results in symmetry plane. I'm new with CFD and any help will be good... Thanks Miroslav