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-   -   [DesignModeler] How to create fluid body as I first designed the solid part through solid works? (http://www.cfd-online.com/Forums/ansys-meshing/117648-how-create-fluid-body-i-first-designed-solid-part-through-solid-works.html)

rasekh64 May 13, 2013 03:15

How to create fluid body as I first designed the solid part through solid works?
 
I am quite beginner in working with Ansys modeling. I intend to simulate air flow between a stator and a rotor through Ansys fluent. As you know, I have to define the right geometry. Hopefully, I am an expert in working with Solidworks, and I could draw the solid part of the geometry very quickly. But I don’t know how to define the fluid part!! Would someone please give me hint?

RodriguezFatz May 13, 2013 04:23

I guess, the fluid volume is inside your solid body and you have some inlets and outlets? In DesignModeler, once you imported your CAD-File, you can close these inlets and outlets by some simple additional bodys. Then, there is some build in function that can create a fluid body from your enclosed volume.

rasekh64 May 13, 2013 05:45

2 Attachment(s)
Quote:

Originally Posted by RodriguezFatz (Post 427112)
I guess, the fluid volume is inside your solid body and you have some inlets and outlets? In DesignModeler, once you imported your CAD-File, you can close these inlets and outlets by some simple additional bodys. Then, there is some build in function that can create a fluid body from your enclosed volume.

Many thanks for your reply. To clarify the problem, I have enclosed a file titled “problem description”. As a further expiation, I am going to model air flow from inside the stator which pulled inside the rotor blades, then the air collected outside of rotor that is surrounded by Housing. After that, the fluid passes by windings of stator into inside.



I already modeled the solid part and imported it to the Ansys workbench. I also used the “Boolean” commend to define the fluid part, but I am not sure if this is the right commend! Could you please take a look at another attached file and advise me.

RodriguezFatz May 13, 2013 07:22

Doesn't the fluid domain look like you want it to?

rasekh64 May 13, 2013 07:40

I just subtracted the whole domain from solid part. It is worth mentioning that I haven't started to mesh this, and yo be honest i don't know how to do so!! But can you elucidate what you mentioned above?

RodriguezFatz May 13, 2013 07:44

But you already did, what I mentioned above. Did you talk about meshing in your first post?

rasekh64 May 13, 2013 08:31

Quote:

Originally Posted by RodriguezFatz (Post 427162)
But you already did, what I mentioned above. Did you talk about meshing in your first post?

In your view, what I modeled till now is correct? Please also tell me where I can define fluid interfaces for moving parts (while meshing or in Fluent!!?). I think I do need to use moving reference frame.
Moreover, what types of mesh is more appropriate to yield more accurate results?
thank u in advance for your kind concern.

RodriguezFatz May 13, 2013 09:25

Up to now, it looks fine to me. I don't have moving parts, so I can't help you. Do you have ICEM for meshing? Your domain does not look too complicated to get a good blocking in ICEM.

rasekh64 May 13, 2013 10:45

This is great; actually I am working with Ansys-fluent 13 and I intend to do meshing via it... It seems they are the same, aren't they?!

RodriguezFatz May 13, 2013 13:15

No, Ansys Meshing and ICEM are two different programs.


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