Hi Guys
We are currently using LIGGGHTS to perform DEM analysis on a trouser chute for a bulk materials handling application.
I am familiar with using LIGGGHTS from an academic standpoint and I am able to use the software.
We currently have a test report, please refer to the attached image regarding the contents.
Does anyone have advice for using the test data to calculate input parameters for the DEM simulation?
Currently the parameters for the angle of repose can be attained by performing the bucket test on LIGGGHTS, implying the filling of a bucket with material which is then lifted and the angle of repose can be checked.
The wall friction can also be done using a flat plate with material on it which is rotated and the angle at which material flows can be recorded for calibration purposes.
Is there any advice that someone can provide?
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Mishal | Thu, 07/18/2024 - 15:23
Just to add
In addition to the above mentioned tests, would performing a withdrawal test and rotating bucket test also assist?
further to this would the processes of determining all the values which go into LIGGGHTS be a trial and error exercise? Or is there a better way of doing it?
drifthuntersgame | Thu, 02/13/2025 - 07:53
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Dodge@ | Tue, 07/08/2025 - 07:54
Thanks for sharing this!
Thanks for sharing this! Using LIGGGHTS for chute simulations sounds really interesting, especially with real test data involved. Your approach for measuring angle of repose and wall friction seems solid and practical. I once came across a simulation-based project on vore games that used similar physics logic for granular flow, and it reminded me how small setup changes can impact results a lot. Hope you get accurate calibration from the tests—would love to hear how it turns out!