What is the most important advantage of LIGGGHTS in comparison to PFC3D?

Mohammad Jahani's picture
Submitted by Mohammad Jahani on Sun, 03/02/2014 - 14:11

Hi every body!
I want to know what is the most important advantage of LIGGGHTS in comparison to commercial software like PFC3D? In other word, what can LIGGGHTS do that PFC3D cannot do?

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richti83's picture

richti83 | Tue, 03/04/2014 - 08:03

1st: it's opensource -> no fee
2nd: it is able to run in manycore (MPI) for particles AND mesh-walls (I know the new PFC3D v.5 release will be parralized too, but did not found the time to compare it with LIGGGHTS yet)
3rd: Postprozessing with paraview is easier than PFC can ever be
4th: it's opensource -> you can adjust everything to your needs (for example rolling friction model) as far as I know PFC3D 5 does not contain the fish tank anymore,
5th: direct import of STL files as walls
performance, performance, performance
The only disadvantiage is that LIGGGHTS does not have a variable time step size but on the other hand this is also an advantage bc. you don't need to worry about write-dump-file-step size ....
Just My Two Cents.

I'm not an associate of DCS GmbH and not a core developer of LIGGGHTS®
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richti83's picture

richti83 | Sun, 03/09/2014 - 09:22

Yes, but you have to buy this feature from DCS bc it is not in the public release
See this example:

http://youtu.be/Mzo9vdEFtuk

u can fake it with the lammps fix rigid but than tensor of of inertia is not correct and there is no usefull insert command for it.

I think Christoph is prepairing a site with an overview what is public and what is consumer code

Best Christian

Ps i'm not a developer or related to dcs or cfdem project!

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I'm not an associate of DCS GmbH and not a core developer of LIGGGHTS®
ResearchGate | Contact