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[DesignModeler] How to create Separate 2D Fluid Zones in DM for Fixed Zone Condition

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Old   August 30, 2019, 16:54
Smile How to create Separate 2D Fluid Zones in DM for Fixed Zone Condition
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Anthony Tang
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I'm trying to do this exact problem outlined here that models an impeller with a fixed zone condition of a given velocity profile:

I created the two rectangular surfaces (both frozen) then did a subtract boolean of the small rectangle from the with preserve the tool body but when I open the mesher, it does not automatically detect an interface between two fluid bodies. I believe I need two separate fluid bodies and that interface so in Fluent I can assign a fixed velocity profile in the box to simulate an impeller or some type of actuator.

Here's how it looks since CFD-online doesn't let me upload pics:
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Old   September 1, 2019, 09:52
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Gwenael H.
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Hi Antony,

Well you already have 2 separate bodies. You just need to define an interface using named selections, either directly in design modeller or in mechanical before transferring the mesh to Fluent.

Have fun
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design modeler, impeller, separate zone

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