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-   -   Help: different mesh for each region of a geometry (http://www.cfd-online.com/Forums/fluent/130809-help-different-mesh-each-region-geometry.html)

Diegoesteban March 4, 2014 16:36

Help: different mesh for each region of a geometry
 
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Hi all, I have the following problem: I want to solve the system of the figure below. Since the passage of the medium is very small, I would use a fine mesh in that region, while a not so fine mesh would be enough to end the reservoirs. They can tell me how to make a different mesh for each region?
I guess I should divide my geometry in different "parts" in DesignModeler (using frozen). In Meshing, as I do a different mesh for each region?
I really appreciate any help you can give me.

Best regards!

neprendo March 4, 2014 16:53

There are a couple ways of doing it, but none of them are in fluent, which this is the forum for. I personally would use Icem to do this but thats up to your own preference.
In Icem after doing the geometry and some preliminary mesh generation its a matter of using mesh parameters and selecting the edge you want to increase the density on. After that you can scroll down and select copy to parallel edges. What are you trying to measure in the connecting pipe that you need a fine mesh anyway?

Diegoesteban March 4, 2014 18:16

I am studying compressible flow. I want to measure the mass flow rate as a function of pressure at the inlet and the outlet. Also, I want to analyze the gas jet formed at the exit of connecting pipe.
Right now I'm trying to use a single mesh my geometry (Meshing software), and add Refinement to the region connecting pipe.

Eakarach March 4, 2014 19:35

For refining mesh at desired zone in fluent, i used adapt region function to refine the mesh. It is very easy to do this by specify the desired zone and click mark. Fluent will compute the cell in this zone. Then click adapt to achieve the refine mesh. I hope it can help you.

Eakarach


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