how to define fluid in a solid structure?

itsqi7 · February 3, 2013, 22:24

Hi,

I want to simulate fluid flow in a new designed solid structure. However, when I import the geometry into FLUENT, I can't find method to define the space inside as the fluid. Hope someone can teach me how to figure that.

Thanks.
itsqi7

itsqi7 · February 3, 2013, 22:28

By the way, if you want to simulate fluid flow in a complex tube, which geometry structure would you draw, fluid or surrounding solid?

msaeedsadeghi · February 3, 2013, 23:36

Fluid.
You mean porous media?
In porous media approach there is no need of seeing the solid zone, it will be just modeld and you can see the porous zone effects in equations.

itsqi7 · February 3, 2013, 23:55

Quote:

Originally Posted by msaeedsadeghi

Fluid.
You mean porous media?
In porous media approach there is no need of seeing the solid zone, it will be just modeld and you can see the porous zone effects in equations.

Thanks, Saeed

Actually it's a chamber with one face as diaphragm. Force will deform the diaphragm so that cause the fluid flow in the chamber. solid.JPG
I try to use ANSYS to simulate the deformation of the diaphragm and use it as an input to simulate fluid flow in FLUENT. However, it seems I can't link these two projects together. Could you pls give me some advice? Thanks.
solid-simu.jpg

Regards,
itsqi7

itsqi7 · February 4, 2013, 21:20

can anyone help me? Thanks a lot.

February 3, 2013, 22:24	how to define fluid in a solid structure?	#1
itsqi7 Member jiaqi wang Join Date: Jan 2013 Posts: 36 Rep Power: 13	Hi, I want to simulate fluid flow in a new designed solid structure. However, when I import the geometry into FLUENT, I can't find method to define the space inside as the fluid. Hope someone can teach me how to figure that. Thanks. itsqi7

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February 3, 2013, 22:28		#2
itsqi7 Member jiaqi wang Join Date: Jan 2013 Posts: 36 Rep Power: 13	By the way, if you want to simulate fluid flow in a complex tube, which geometry structure would you draw, fluid or surrounding solid?

February 3, 2013, 23:36		#3
msaeedsadeghi Senior Member SSL Join Date: Oct 2012 Posts: 226 Rep Power: 14	Fluid. You mean porous media? In porous media approach there is no need of seeing the solid zone, it will be just modeld and you can see the porous zone effects in equations.

February 4, 2013, 21:20		#5
itsqi7 Member jiaqi wang Join Date: Jan 2013 Posts: 36 Rep Power: 13	can anyone help me? Thanks a lot.