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Porous-Jump Problem

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Old   March 21, 2018, 13:11
Post Porous-Jump Problem
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Uğur Demir
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Hello,

I am having a problem in making porous-jump boundary condition. I need to use porous-jump for my 3D HVAC analysis.

How do i model my geometry?

Do i need 2 part body? or do i need surface body?

Can you please help me?

Thank You
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Old   March 22, 2018, 06:33
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Hi,

You do not need 2 parts. Make one part and change the corresponding geometry (wall or interface) to the porous jump BC.
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Old   March 22, 2018, 10:48
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Quote:
Originally Posted by e_cfd View Post
Hi,

You do not need 2 parts. Make one part and change the corresponding geometry (wall or interface) to the porous jump BC.
But i cannot choose the surface for porous jump in one part. I attached a very simple geometry for same case. I guess porous jump would be surface?

Can you share a simple geometry with porous-jump boundary condition?
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Old   March 23, 2018, 04:49
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Dear Sherlock,

For example, in the last image you attached, it seems that you have 2 parts. you need to select these two parts from "the tree outline/parts" in the design modeler (from workbench). Now click right and form a new part. Then you would have two bodies but one part. Now you have just one interface between these two bodies and also your mesh would be conformal. this interface would be the porous-jump boundary (you have to change it in the Fluent/boundary conditions from interior to he porous-jum BC).
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Old   March 23, 2018, 05:04
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Quote:
Originally Posted by e_cfd View Post
Dear Sherlock,

For example, in the last image you attached, it seems that you have 2 parts. you need to select these two parts from "the tree outline/parts" in the design modeler (from workbench). Now click right and form a new part. Then you would have two bodies but one part. Now you have just one interface between these two bodies and also your mesh would be conformal. this interface would be the porous-jump boundary (you have to change it in the Fluent/boundary conditions from interior to he porous-jum BC).
Dear Ehsan,

It works. I always tried to use Boolean Operations to make one part. But it deletes the interface.

Thank you very much.
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grille hvac bc, grilles, hvac, porous jump, porous jump bc

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