# Setting Up a Simulation Using Porous Media

**URL:** <https://www.simscale.com/forum/t/setting-up-a-simulation-using-porous-media/36293>\
**Category:** Project Support\
**Created:** [August 4, 2016, 9:11pm UTC](https://www.simscale.com/forum/t/setting-up-a-simulation-using-porous-media/36293 "2016-08-04T21:11:44Z")\
**Posts on this page:** 1\
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**Author:** ![varsey](https://www.simscale.com/forum/user_avatar/www.simscale.com/varsey/32/16133_2.png) [@varsey](https://www.simscale.com/forum/u/varsey)\
**Post date:** [August 23, 2016, 7:09am UTC](https://www.simscale.com/forum/t/setting-up-a-simulation-using-porous-media/36293/10 "2016-08-23T07:09:03Z")

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Hi everyone,

Just to finish what we discussed here: the specific example how to find out what numbers exactly you put in a porous media properties is the following: the darcy eq. in OpenFOAM (eq. 3 [here](http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2008/HaukurElvarHafsteinsson/haukurReport.pdf)) you put in correspondance with semi-emperical data here - slide 207 [here](http://www.slideshare.net/Aapandove/bird-stewart-lightfoot-2002-transport-phenomena-2nd-ed) - eq (6.4-14).

This gives you the following equations:

- d = 150 (1-eps)^2 / (eps^2 \* D^2)

- f = 2 \* 1.75 \* (1-eps) / (eps^3 \* D)

Where eps and D is characteristics of your porous media (porosity and mean particles diameter).

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