Patrick Pizette
YOU?
Author Swipe
View article: Fourier Image Analysis of Multiphase Interfaces to Quantify Primary Atomization
Fourier Image Analysis of Multiphase Interfaces to Quantify Primary Atomization Open
This work describes a post-processing scheme for multiphase flow systems to characterize primary atomization. The scheme relies on the 2D fast Fourier transform (FFT) to separate the inherently multi-scale features present in the flow resu…
View article: A Generalized Finite Difference Scheme for Multiphase Flow
A Generalized Finite Difference Scheme for Multiphase Flow Open
This paper presents a GPU-based, incompressible, multiphase generalized finite difference solver for simulating multiphase flow. The method includes a dampening scheme that allows for large density ratio cases to be simulated. Two verifica…
View article: On the momentum diffusion over multiphase surfaces with meshless methods
On the momentum diffusion over multiphase surfaces with meshless methods Open
This work investigates the effects of the choice of momentum diffusion operator on the evolution of multiphase fluid systems resolved with Meshless Lagrangian Methods (MLM). Specifically, the effects of a non-zero viscosity gradient at mul…
View article: A Macro-Meso-Microscale Meshless Model for Multiphysics Particle-Laden Flows
A Macro-Meso-Microscale Meshless Model for Multiphysics Particle-Laden Flows Open
This work extends a multi-phase mixing model framework designed for a Smoothed Particle Hydrodynamics context. Specifically, we propose a higher-order variation using the first-order accurate Generalised Finite Difference differential oper…
View article: Modelling realistic ballast shape to study the lateral pull behaviour using GPU computing
Modelling realistic ballast shape to study the lateral pull behaviour using GPU computing Open
The use of the Discrete Element Method to model engineering structures implementing granular materials has proven to be an efficient method to response under various behaviour conditions. However, the computational cost of the simulations …
View article: A study on the effect of grain morphology on shear strength in granular materials
A study on the effect of grain morphology on shear strength in granular materials Open
The Discrete Element Method (DEM) has been successfully used to further understand GM behaviour where experimental means are not possible or limited. However, the vast majority of DEM publications use simplified spheres with rolling fricti…
View article: Mineralogical, Chemical, Geotechnical and Mechanical Investigations of Bafang Lateritic Fine Soils Formed on Basalts (West-Cameroon) for Road Embankment Purpose
Mineralogical, Chemical, Geotechnical and Mechanical Investigations of Bafang Lateritic Fine Soils Formed on Basalts (West-Cameroon) for Road Embankment Purpose Open
The present paper treats the relationship between geotechnical parameters and the mineralogical compositions, in order to understand the behavior of the Bafang lateritic fine soils and their efficient use as road embankment materials on th…
View article: 3D laser scanning technique coupled with dem GPU simulations for railway ballasts
3D laser scanning technique coupled with dem GPU simulations for railway ballasts Open
Spheres with complex contact models or clumped sphere models are classically used to model ballast for railway applications with the Discrete Element Method (DEM). These simplifications omits the angularity of the actual ballast by assumin…
View article: Towards reproducible experimental studies for non-convex polyhedral shaped particles
Towards reproducible experimental studies for non-convex polyhedral shaped particles Open
\nThe packing density and flat bottomed hopper discharge of non-convex polyhedral particles are investigated in a systematic experimental study. The motivation for this study is two-fold. Firstly, to establish an approach to deliver qualit…
View article: Numerical study on the effect of particle shape on mixers
Numerical study on the effect of particle shape on mixers Open
Homogenization of particulate systems is a critical part in the processing of particulate materials to achieve consistency and ensure product quality. Homogenization is achieved by mixing, the aim is to obtain a final mixture that is homoge…
View article: Potential for interactive design simulations in discrete element modelling
Potential for interactive design simulations in discrete element modelling Open
This study investigates the potential for combining lower fidelity models with high performance solution strategies such as efficient graphical processing unit (GPU) based discrete element modelling (DEM) to not only do simulations faster but…
View article: BlazeDEM3D-GPU A Large Scale DEM simulation code for GPUs
BlazeDEM3D-GPU A Large Scale DEM simulation code for GPUs Open
\nAccurately predicting the dynamics of particulate materials is of importance to numerous scientific and industrial areas with applications ranging across particle scales from powder flow to ore crushing. Computational discrete element si…
View article: DEM GPU studies of industrial scale particle simulations for granular flow civil engineering applications
DEM GPU studies of industrial scale particle simulations for granular flow civil engineering applications Open
\nThe use of the Discrete Element Method (DEM) for industrial civil engineering industrial applications is currently limited due to the computational demands when large numbers of particles are considered. The graphics processing unit (GPU…
View article: Effect of wall roughness on interface behavior of DEM-simulated granular material
Effect of wall roughness on interface behavior of DEM-simulated granular material Open
This paper deals with the behavior of packed spherical particles sheared on rough surfaces. The discrete element method (DEM) is used to model the granular material. Likewise, the roughness is modeled by spherical boundary conditions. From…
View article: Validation of the GPU based BLAZE-DEM framework for hopper discharge
Validation of the GPU based BLAZE-DEM framework for hopper discharge Open
Understanding the dynamical behavior of particulate materials is extremely important to many industrial processes, with typical applications that range from hopper flows in agriculture to tumbling mills in the mining industry. The discrete…