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Re: [Question #230621]: apply buoyancy forces on particles

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Bruno Chareyre <question230621@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 14 Jun 2013 08:11:39 -0000
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Question #230621 on Yade changed:
https://answers.launchpad.net/yade/+question/230621

Bruno Chareyre posted a new comment:
I must admit my trick has the drawback of changing the dynamic of the system:
in acceleration=force/mass, mass will be changed while it should not (only force should be different)

If necessary, it can be fixed using b.state.densityScaling (see Newton.cpp:179):
b.state.mass = apparentMass
b.state.densityScaling = realMass/apparentMass.

And: newton.densityScaling=True

In that case acceleration is correct again.

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