[Getdp] Mass Flow Simulation

[Tammo.Heeren at AlconLabs.com]

Bernhard,

> Have you had a look at our wiki example (username: getdp, password:
> wiki): 
> http://geuz.org/getdp/wiki/Avalanche2d
> 
> There the flow velocity is derived from a scalar potential.

The wiki example has been very helpful, as pretty much all of you
examples.
I have one problem with Avalanche2d. Maybe it is my limited
understanding.
If I set the parameter alpha = 0 I would expect the total number of
electrons to stay constant.
Is this a correct assumption?
However, when I run the example and use the 'integrate' plugin to
integrate n for the entire domain, I get a number that is decreasing
with time. The integrate plugin might not be the correct choice, as it
it probably does not take into account the cylindrical geometry of the
domain.

Tammo


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