The CFD-DEM model, or Computational Fluid Dynamics / Discrete Element Method model, is a process used to model or simulate systems combining fluids with solids or particles.

In a typical CFD-DEM model, the phase motion of discrete solids or particles is obtained by the Discrete Element Method (DEM) which applies Newton's laws of motion to every particle [1] and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional Computational Fluid Dynamics ...

2021年4月12日 · The existing published literature indicates that CFD–DEM is a promising approach to study the bio-particulate matter behavior immersed in fluid flow, and it could be benefiting from developing and optimizing the device's geometry and the operations.

2023年10月11日 · In this paper, we present a CFD-DEM model of plugging validated against several experimental benchmarks. Using the simulations, we consider the process of plugging in a slurry of ice in...

2019年9月11日 · When engineers need to assess non-spherical particle-fluid interactions, they can create a multiphysics simulation by coupling CFD and DEM using Ansys Fluent and Rocky DEM, from Ansys Channel Partner ESSS. There are two ways to couple CFD-DEM models: using one-way or two-way communication.

Click here for examples of coupled fluid-granular simulation with the CFD-DEM technique.

Coupling the traditional computational fluid dynamics (CFD) approach to model the fluid phase with the discrete element method (DEM) to model the particles creates a powerful numerical method to study multiphase particulate flows.

CFDEM®project is an open source software project for computational simulation engines, for these particle and fluid flow processes. This website is about. - the CFDEM®coupling CFD-DEM software. Every contribution to the open source packages LIGGGHTS® and CFDEM®coupling in the past is mentioned in the release notes.

2017年9月1日 · In this work, coupling the traditional computational fluid dynamics (CFD) approach to model the fluid phase with the discrete element method (DEM) to model the particles creates a powerful numerical method to study particulate flows. Cocco, Ray, et al. "CFD-DEM: Modeling the small to understand the large." , Sep. 2017.

2025年3月11日 · Many studies have investigated tunnel face failure using the discrete element method (DEM). However, DEM simulations that incorporate water-soil interactions in tunnel face failure are still limited. In this study, the coupled CFD-DEM method is employed to simulate the progressive failure of the shield tunnel face in both saturated and dry sand. The dynamic mesh …