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#1 |
New Member
Iljar Dickhof
Join Date: Mar 2019
Posts: 8
Rep Power: 7 ![]() |
Hello experts,
I'm trying to model a grid/grille as a porous media in CFX. However I've never worked with porous media before and I want to ask advice. I've read you can fill in a resistance coefficient (linear/quadratic) to model the resistance but how can I calculate this coefficient if I only know the amount of holes and the area and thickness of the grid/grille. Does someone have experience with this kind of problem? Greetings, Iljar Dickhof |
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#2 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,188
Rep Power: 23 ![]() |
-Run a small simulation of one representative section of the grill. (one hole, or quarter hole if you can use symmetry)
-Construct a curve for pressure drop vs flow velocity. -Calculate your linear and quadratic loss coefficients to fit this curve. |
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Tags |
grid, grille, model, porous media |
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