2020/02/08 by Satori Tsuzuki, Tsuzuki, Satori
Engineering · Environmental Science · Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fluid Dynamics Simulations and Interactions #Granular flow and fluidized beds #Landslides and related hazards #physics.comp-ph #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.2002.03120
The source code is available at https://github.com/satori-tsuzuki/DEMocritus
arxiv created 2020/02/08 · openalex publication_date 2020/02/08 · arxiv updated 2020/02/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper provides open-source code that works as a viscometer of particle-based simulations of three-dimensional fluid-particle interaction systems, targetting slurry or suspension flow in chemical engineering. The smoothed dissipative particle dynamics (SDPD), a fluid particle model developed for thermodynamic flow at mesoscale, is combined with the contact model of the discrete element method (DEM). The mechanics of fluid-particle interaction is modeled by a two-way interaction scheme using a drag-force model. We demonstrate our simulation code by several validation tests: simulations of reverse-Poiseuille flow, single-particle sedimentation, and a dam-breaking problem containing rigid particles, in reasonable calculation time. Our new open-source code is beneficial for scientists, researchers, and engineers in computational physics.