 |
 |
 |
|
|
|
[Sponsors] | ||||
April 2, 2019, 04:42
|
Modelling grid as porous media
|
#1 |
|
New Member
Iljar Dickhof
Join Date: Mar 2019
Posts: 8
Rep Power: 8  |
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 |
|
|
|
|
|
April 2, 2019, 09:51
|
|
#2 |
|
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,196
Rep Power: 24 |
-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. |
|
|
|
|
|
 |
| Tags |
| grid, grille, model, porous media |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Modelling aflow through a porous media | EBehnamtalab | FLOW-3D | 0 | May 30, 2017 07:23 |
| Modelling of physical porous media in OpenFOAM | dhineshcecfd | OpenFOAM | 1 | December 9, 2016 11:04 |
| porous media modelling | sekar | FLUENT | 0 | January 21, 2008 03:27 |
| porous media: Fluent or Star-CD? | Igor | Main CFD Forum | 0 | December 5, 2002 16:16 |
| Combustion Convergence problems | Art Stretton | Phoenics | 5 | April 2, 2002 06:59 |
Linear Mode
