Hi Everyone
The "dump custom" has the option for writing "fx fy fz". I assume these are the resultant total unbalanced force per sphere.
Is it possible to dump the contact forces (between spheres) and the contacts' positions?
Thank you
Alexander
A project by DCS Computing and CFDEMresearch
This website uses cookies to ensure you get the best experience on our website. By continuing to browse the site you are agreeing to our use of cookies. This website uses cookies. By continuing to browse the site you are agreeing to our use of cookies. More info
ckloss | Fri, 07/09/2010 - 11:58
Re: Dumping Contact Forces
Hi Alexander,
yes, fx, fy, fz is the total force on a sphere (comprising particle and wall contacts, gravity etc.)
Currently, such a contact chain feature is not implemented - but it could be developed on request
Best,
Christoph
alexander.polson | Mon, 07/12/2010 - 12:59
Re: Dumping Contact Forces
Hi Christoph
Such a feature would be very useful to me and, I think, other users too.
E.g. if you want to get the torque needed (or energy consumed) for turning a drum filled with particles, or the force caused by the spheres against a structure.
Do you have a procedure for feature requests, or is this it?
Thank you!
Kind regards
Alexander
ckloss | Mon, 07/12/2010 - 14:34
Re: Dumping Contact Forces
Hi Alex,
>>Such a feature would be very useful to me and, I think, other users too.
Agreed
>>E.g. if you want to get the torque needed (or energy consumed) for turning a drum filled with particles, or the force >>caused by the spheres against a structure.
That is surely possible
>>Do you have a procedure for feature requests, or is this it?
If you have something concrete in mind, send me an email and we will talk about it!
Best,
Christoph
Silias | Thu, 09/01/2011 - 13:38
Hi Christoph, is there a
Hi Christoph,
is there a chance, that this feature will be implemented in the near future in a public release?
If not, could you shortly outline the steps which have to be taken to implement such a feature and which files are concerned?
Thanks,
Sebastian
ckloss | Thu, 09/01/2011 - 13:43
that is already implemented,
that is already implemented, see compute pair/gran/local (for p-p contact forces) and fix mesh/gran/stressanalysis (for total force/torque on body)
However, pizza.py does currently not support converting this data into VTK, so you would have to do this on your own or check out what Mark Bentley coded, see here: node/393
Christoph