LIGGGHTS 1.5.2 (released 13 March 2012)

ckloss's picture
Submitted by ckloss on Tue, 03/13/2012 - 18:28

LIGGGHTS 1.5.2 (released 13 March 2012)
CFDEM COMPATBILITY: 1.5.2 is currently not able to couple to CFDEM
+ Fixed two issues in the rolling friction model. Thanks to Matt Roesler (ETH Zürich) for detecting the issues in the code and to Prof. Jin Ooi (U Edinburgh) and Matt Roesler for a very helpful discussion discussion.
+ Fixed a bug in the 'region cone' command. Thanks to Maria Angelova (TUHH) for bringing this up and to Andreas Aigner (JKU) for tracking down the bug.
+ Added error messages thrown by missing quantities more informative by providing info which model requires them.
+ Fixed an issue with compute pair/gran/local and compute/wall/gran/local when the pair/fix they are referring to changes during the simulation. Thanks to Sergei Dorofeenko (Russian Academy of Sciences) for sending a testcase that showed this problem.
+ Added a 'dump_modify label' option to dump custom, to enable outputting the simulation time to the real-time viz in Paraview developed by Christian Richter (OVGU Magdeburg)

Improvements to particle insertion:
+ Resolved an issue with using new meshes and fix insert/stream commands in a restarted simulation that were not present in the simulation that generated the restart file.
+ Fix insert/stream now works also with 'all_in yes'.
+ Made some optimizations to make simulations faster if a large number of fix insert/stream commands are used in the simulation
+ Deactivated dynamic regions for usage with fix insert/pack and fix insert/rate/region. Thanks to Sam Bateman (US Naval Research Lab) for sending a script that showed there is a problem.

BACKWARD COMPATIBILITY: The fix for the rolling friction model will lead to different results now if the same parameters are used. Anyway, the results should be comparable to the results produced by versions older than 1.5
CFDEM COMPATBILITY: 1.5.2 is currently not able to couple to CFDEM - Please use the stable version 1.5 from 'git://cfdem.git.sourceforge.net/gitroot/cfdem/liggghts' instead