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

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Old   February 28, 2013, 13:36
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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...
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Old   February 28, 2013, 13:43
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Quote:
Originally Posted by PSYMN View Post
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 ....
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Old   February 28, 2013, 13:51
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Quote:
Originally Posted by PSYMN View Post
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!!!

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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"
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Old   February 28, 2013, 13:58
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[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???
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