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Re: [Question #704153]: Porosity of a particles inside the container

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Vasileios Angelidakis <question704153@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 18 Dec 2022 15:15:31 -0000
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Question #704153 on Yade changed:
https://answers.launchpad.net/yade/+question/704153

    Status: Open => Answered

Vasileios Angelidakis proposed the following answer:
Hi Lassakorn,

>  I'm very new to this program
Welcome :)

You can calculate the volume of all the spheres in your model using: Vs=getSpheresVolume()
Calculate the volume of your cylinder as: Vtot=height*(pi*radius**2)
and then calculate porosity as: n=(Vtot-Vs)/Vtot

If not the whole container is not filled, you might want to adjust
"height" to your filling height, to get a more meaningful measurement.

Hope this helps, Vasileios

PS: There is a built-in function porosity(), but it only works
considering the bounding box of all the spheres in your model, and not a
cylinder.

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