Yade

swelling of particles

Asked by Rioual

Hello,

How can I introduce in my yade code the swelling (increase of volume) of my particles with time ??
(due to thermal effects)
I think it has been used with yade in the past (Charlas et al, 2013)..

Thank you for your help,

Best regards

Fr.

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Robert Caulk
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Robert Caulk (rcaulk) said : 		#1

If you simply want to control the particle volume based on some logic in your python script, you have access to that with [1].

[1]https://yade-dev.gitlab.io/trunk/yade.wrapper.html#yade.wrapper.Sphere.radius

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Rioual (francois-rioual-v) said : 		#2

Hello Robert,

...Thank you for your answer.
But, How do i introduce a condition on the time step in yade ??
for modelling a swelling that evolves with time with a predefined law
as a function of time ??

Thank you

Fr.

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Best Robert Caulk (rcaulk) said : 		#3

Hello,

>>But, How do i introduce a condition on the time step in yade ??

This is done using what we call a PyRunner, as exemplified here [1], which is a function that lets the user execute some python code at a desired period. I guess the python code that you want to execute is your predefined law.

>>modelling a swelling that evolves with time with a predefined law
as a function of time ??

You can access the model time with O.time [2]

Cheers,

Robert

[1]https://yade-dev.gitlab.io/trunk/user.html#running-python-code
[2]https://yade-dev.gitlab.io/trunk/yade.wrapper.html#yade.wrapper.Omega.time

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Rioual (francois-rioual-v) said : 		#4

great explanations,
thanks Robert!