CFDEM®coupling, LIGGGHTS® and ParScale - Announcements from the developers

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LIGGGHTS 1.1.1 released

ckloss's picture
Submitted by ckloss on Wed, 06/30/2010 - 15:16

LIGGGHTS 1.1.1 (released 30. June 2010)
BACKWARD COMPATIBILITY:
You will be able to use restart files from 1.1
You may not be able to use restart files from versions older than 1.1

Version 1.1.1 changes the way the effective Shear modulus for two particles in contact (G*) is calculated. See doc/pair_gran.html for details on the formula.

The old calculation was based on Chemical Engineering Science 59 (2004) 525 – 541, whereas 1.1.1 uses the calculation as given in Comput. Methods Appl. Mech. Engrg. 197 (2007) 80–94.

LIGGGHTS 1.1 RELEASED

ckloss's picture
Submitted by ckloss on Tue, 06/29/2010 - 18:04

LIGGGHTS 1.1 (released 29. June 2010)
BACKWARD COMPATIBILITY: You may not be able to use restart files from previous version with 1.1!

Version 1.1 contains the following new features:

1) Added a feature to calculate stresses on CAD imported meshes to the main distribution. See doc for fix mesh/gran/stressanalysis for details.
2) Added a dump mesh command to post-process these stresses with paraview
3) Dump stl and dump mesh now have an option to choose which meshes/stresses should be dumped to STL/VTK

ANNOUNCEMENT: LIGGGHTS 1.0.3 released

ckloss's picture
Submitted by ckloss on Thu, 06/03/2010 - 14:56

SEE ALSO HERE

LIGGGHTS 1.0.3 (released 03. June 2010)

BACKWARD COMPATIBILITY: You will not be able to use restart files from previous version with 1.0.3!

Version 1.0.3 comprises a new 'conveyor belt' wall model added to the fix mesh/gran command.
The mesh/gran can be assigned a constant velocity, but is not moving itself. This can be used to mimic a conveyor belt for meshes that are flat or curved in one direction . Also added an example for the conveyor belt model

User contributed input scripts and installation hints

ckloss's picture
Submitted by ckloss on Fri, 05/28/2010 - 08:29

Hi all,

I have added a new website section where users can share LIGGGHTS/LAMMPS input scripts and installation hints.

The Open Source idea is based on the fact that people share information. These pages are meant to be a possibility for users to share LAMMPS/LIGGGHTS input scripts which may be useful especially for beginners learning LAMMPS/LIGGGHTS and also hints for installation. As a start, I have copied an input script from the forum to the user contributed section.

DEM with LAMMPS/LIGGGHTS - Training classes

ckloss's picture
Submitted by ckloss on Wed, 05/26/2010 - 21:14

Hi all,

I just wanted to anounce that in the forum also:

Training classes on Discrete Element Modelling with LAMMPS/LIGGGHTS that are open for people from industry as well as from academia will be held on a regular basis in Linz, Austria. A first class is currently being held.

The next classes will be held:
+ June 9-11
+ September 22-24

Info about these classes as well as a registration form can be found here.

Regards,
Christoph

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