The decrease of meniscii volume happens, because liquid bridges were
erased during the simulation (set isBroken = True ;)
I am using getCapillaryStress(triax.boxVolume) maybe the problem is in
boxVolume? maybe it is zero ... I will check that.
Zitat von Jerome Duriez <[email protected]>:
Hi Christian, thank you for the confirmation and the figures. Could
you please comment them a little, so that I get the problem they
show ? In fact, I would deduce from them that there is a problem for
Pc* < 1000, where the water volume starts to decrease when suction
decreases, whereas I would wait for continuous increase of the water
volume (= saturation ratio) in this case..
And I was not aware there could be problem with getCapillaryStress :
as for me, I can use it without problems..
________________________________________
From: Yade-dev
[[email protected]] on
behalf of Christian Jakob [[email protected]]
Sent: November 13, 2014 5:36 AM
To: [email protected]
Subject: Re: [Yade-dev] Some cleaning in capillary law : data files validity
Hi,
I followed your discussion on capillary law and I can confirm, that
the meniscii volume is not correct for a suction higher than 1500. In
my simulations I reduce suction from 5000 to 0 and erase liquid
bridges from bottom to top of the model (see attachment). The
calculation of forces seems to be uneffected (see sum of cap. forces).
Thanks for spoting this!
Christian
btw, getCapillaryStress() is still not working (see file)...
Zitat von Bruno Chareyre <[email protected]>:
On 10/11/14 20:00, Jerome Duriez wrote:
Ok. I'm getting zero water volume for contacting spheres for an
adimensionned capillary pressure Pc* = 1500 +/- 5 (the minimum
adimensionned water volume seems to be ~ 2.6e-6)
Great. It means that 1500 was probably the max value when generating the
data files.
There could be a warning in the code if Pc*>=1500, but it is only
relevant for a specific set of data files...
The max should be defined automatically when reading the data.
B
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