[ICEM] airflow in an annular space between outer and inner pipe

PSYMN · February 28, 2013, 12:36

I think Far and DiamondX got this

Or at least as far as I would have. They used the option to change blocking material so they could have fluid and solid regions. Of course, the geometry needs to have a surface between these regions for the interface to project to.

Once it is meshed and set to the solver, Fluent will make a shadow for each interface and you can setup your zones as fluid and solid.

Not sure why it would diverge on you... It is a pretty basic setup. The mesh looks good, maybe you need to take the Fluent problem to the Fluent Forum...

malay · February 28, 2013, 12:43

Quote:

Originally Posted by PSYMN

I think Far and DiamondX got this

Or at least as far as I would have. They used the option to change blocking material so they could have fluid and solid regions. Of course, the geometry needs to have a surface between these regions for the interface to project to.

Once it is meshed and set to the solver, Fluent will make a shadow for each interface and you can setup your zones as fluid and solid.

Not sure why it would diverge on you... It is a pretty basic setup. The mesh looks good, maybe you need to take the Fluent problem to the Fluent Forum...

thank you so much for replying ....

Far · February 28, 2013, 12:51

Quote:

Originally Posted by PSYMN

I think Far and DiamondX got this

Or at least as far as I would have. They used the option to change blocking material so they could have fluid and solid regions. Of course, the geometry needs to have a surface between these regions for the interface to project to.

Once it is meshed and set to the solver, Fluent will make a shadow for each interface and you can setup your zones as fluid and solid.

Not sure why it would diverge on you... It is a pretty basic setup. The mesh looks good, maybe you need to take the Fluent problem to the Fluent Forum...

This may be the reason for divergence!!!

Quote:

If you give it boundary (wall) your flow will not flow from this boundary, or if you give it as inlet or outlet it will be mathematically wrong. Trick is " associate face to surface"

htokan · February 28, 2013, 12:58

[QUOTE=Far;410704]This may be the reason for divergence!!![/QUO

Dear Far,
If interior not wall and no inlet or outlet what is your opinion ignored from boundary???

February 28, 2013, 12:36		#21
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	I think Far and DiamondX got this Or at least as far as I would have. They used the option to change blocking material so they could have fluid and solid regions. Of course, the geometry needs to have a surface between these regions for the interface to project to. Once it is meshed and set to the solver, Fluent will make a shadow for each interface and you can setup your zones as fluid and solid. Not sure why it would diverge on you... It is a pretty basic setup. The mesh looks good, maybe you need to take the Fluent problem to the Fluent Forum... malay likes this. __________________ ----------------------------------------- Please help guide development at ANSYS by filling in these surveys Public ANSYS ICEM CFD Users Survey This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)... CFD Online Users Survey

February 28, 2013, 12:58		#24
htokan New Member htokan Join Date: Jul 2009 Posts: 6 Rep Power: 16	[QUOTE=Far;410704]This may be the reason for divergence!!![/QUO Dear Far, If interior not wall and no inlet or outlet what is your opinion ignored from boundary??? malay likes this.