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Re: PSD triaxial
Janek Kozicki <janek_listy@xxxxx>
Tue, 13 Jul 2010 11:21:58 +0200
Bruno Chareyre said: (by the date of Mon, 12 Jul 2010 11:47:47 +0200)
> > The TriaxialTest generator is trying to guess the box size from the
> > number of particles. This is why Bruno suggests changing porosity.
> Nope, the generator is guessing size of particles form number and box
> size, its a bit the same.
> The "guess box size" part has been implemented by Vaclav I think.
> > But personally I have found that using fixedBoxDims='xyz' and
> > controlling the box size myself gives better results.
> Mmmmh... How "better"?
> If you find the TT algorithm too slow, keep in mind that it can be
> speeded up a lot by changing growth coefficients, confining stress and
> other parameters. CPU time for packing generation has never been a
> problem for me yet.
by better I mean: there is no error "Exceeded 1000 tries to insert ...".
I prefer to set radius and radius deviation at a fixed value, so that
I have control on the sieve curve.
In fact I want a sample of target size, eg. 10x10x10cm (after the
initial compaction phase) and with a given sieve curve.
To achieve that I am fixing the sieve cure by controlling radius, and
I am trying different xyz and different number of particles, until I
get what I wanted. Can this be done in some better way?
Janek Kozicki http://janek.kozicki.pl/ |