| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 09009 | |
| Number of page(s) | 4 | |
| Section | Particle-Based Numerical Methods | |
| DOI | https://doi.org/10.1051/epjconf/202534009009 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534009009
Impact of an Improved Velocity-Verlet Scheme on DEM Simulations
1 Department of Mechanical Engineering Northwestern University Evanston Illinois 60208 USA
2 Department of Chemical and Biological Engineering Northwestern University Evanston Illinois 60208 USA
3 Northwestern Institute on Complex Systems (NICO) Northwestern University Evanston Illinois 60208 USA
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Published online: 1 December 2025
Abstract
The velocity-Verlet integration scheme is widely used in DEM simulations for its simplicity, accuracy, and efficiency. However, its half-step staggering of position and velocity can introduce significant errors in contact force calculations, leading to unphysical kinematics. To address this, an improved scheme is now available. This study evaluates its impact by comparing predictions from the standard and improved schemes across several representative granular flow problems.
© The Authors, published by EDP Sciences, 2025
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