Both the direction and the flow rate of ejected air in bucket elevator [1,2] enclosures that feature a separate arrangement of carrying and idle conveyor runs would depend on the ratio between ejection heads and the ...

The study of particulate suspensions flowing through narrow channels has received much attention in the last decades, especially with advance in the field of microfluidics devices. In square channels, it is known that particles ...

The tensile strength of solid materials is one of the most important parameter describing a behavior of the material under external mechanical loading and thus its knowledge is of great practical importance. However, the ...

Detailed particle models by taking into account the material grain structure explicitly consider the material randomness, including a size limiter for damage localization. A VGMC3D contact model is presented that considers ...

In 2011, Tohoku-Kanto earthquake tsunami caused serious damage to the port and coastal structures such as breakwaters and seawalls. The damage mechanism of these structures has been studied in the past, and it is found ...

The tsunami run-up simulation by the particle method at city level needs to huge number of particle at least 1 billion particles. The conventional particle simulation method is not easy to solve these huge problem even on ...

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 ...

In this paper, a stable Lattice Boltzmann Flux Solver (LBFS) is proposed for simulation of hypersonic flows. In LBFS, the finite volume method is applied to solve the Navier-Stokes equations. One-dimensional Lattice Boltzmann ...

The goal of this work was to investigate the possibility of the XDEM (eXtended Discrete Element Method) program to simulate the behaviour of wood particles during the gasification process that was performed in the Institute ...

The aim of this paper is to show 3D numerical results on progressive fracture of the concrete at aggregate level using discrete element method (DEM). The test were performed for three point bending beam. Concrete was ...

Modeling the long-term performance of granular materials under cyclic loading conditions is still a challenge and a better understanding could provide a large benefit for the design of foundations. One typical application ...

The field of applications for Discrete Element Method is constantly growing, enabling the simulation of granular matter. However state of the art integration schemes are mostly adopted from other methods, which results in ...

In this paper, the fluidization of 8 mm glass particles in water has been simulated using a new methodology developed within the DEM framework. In this methodology, random liquid fluctuating velocities are used as direct ...

The lateral capillary force is of significant importance in liquid film coating processes [1]. This force, for particles much smaller than the capillary length, decays with the inverse of the separation distance between ...

Hoppers of different shape and angle are widely used in different industries particularly in handling of solids as storage units and in unit operations, e.g. mixing, tableting, etc. It is a challenge to choose a right ...

In the growing field of bulk solids handling, automated optical sorting systems are of increasing importance. However, the initial sorter calibration is still very time consuming and the precise optical sorting of many ...

Simulation of extrusion processes represents a large challenge for commonly used numerical methods. In our application for example, a hot melt is extruded whilst being rapidly cooled. Under these conditions of quenching, ...

The paper is devoted to the theoretical investigation of the peculiarities of material flow taking place in friction stir welding (FSW). The investigation was based on 3D computer simulation by the movable cellular automaton ...

Jet engines ingest sand and volcanic ash in the air and then the sand and ash reach a combustion chamber. Due to the high temperature of the chamber, sand and ash are melted and form the molten droplets. The molten droplets ...

A new approach to calculate surface tension in a particle method is proposed. In particle methods, one way to calculate surface tension is introducing pairwise potential force, which is long-range attractive and short-range ...

This study presents a numerical modelling of HCT (Hollow Cylinder Test) using DEM (Discrete Element Method) by developing of TRUBAL code on granular soils. Due to high expenditures of HCT, a verified numerical modelling ...

The Vajont landslide involved a large mass of rock splashing at high speed into the reservoir which in turn generated a highimpulse water that overtopped the dam and swept away the downstream village. In several cases of ...

The paper presents some three-dimensional simulation results of granular vortex-structures in cohesionless initially dense sand during quasi-static plane strain compression. The sand behaviour was simulated using the ...

Dry granular flows are very common both in many natural phenomena (flow-like landslides) as well as in industrial processes. To model granular flows in the framework of continuum mechanics, a key issue is the formulation ...

We present the Parallel Particle-Mesh Environment (PPME), a domain-specific language (DSL) and development environment for numerical simulations using particles and hybrid particle-mesh methods. PPME is the successor of ...

The granular gripper is an innovative device designed to grasp objects using the jamming properties of granular materials. However, these properties that influence its performance is still poorly understood. Moreover, to ...

Understanding and controlling the flow of fluids through porous media such as rocks, fibres, granular media and paper is of fundamental significance to a variety of industries such as oil and gas, chemical production, ...

In bulk handling applications, such as conveying and storage, understanding the DEM particle characteristics to best simulate the flow of particulate systems at the macroscopic scale addresses an uncertainty in the DEM ...

The Material Point Method (MPM) is a continuum-based numerical method especially suitable for solving large deformation problems. In this paper, we investigate the null-space errors present in MPM solutions. The paper ...

In the Material Point Method (MPM) the structure is discretized into a set of material points that hold all the state variables of the system [1] such as stress, strain, velocities etc. A background grid is employed and ...

The original numerical scheme is developed for vortex sheet intensity computation for 3D incompressible flow simulation using meshless Lagrangian vortex methods. It is based on tangential components of the velocity boundary ...

The modification of vortex method is developed which is based on closed vortex loops usage for calculation of unsteady aerodynamic loads acting on bluff bodies. It is shown that such approach has number of advantages for ...

Problems of fluid-structure interaction with free surface flow and multi-body interactions are highly nonlinear and complex phenomena, which is challenging for computational modeling and simulation. In the presence of ...

Heat transfer in granular media is an important mechanism in many industrial applications. For some applications conduction is an important mode of heat transfer. Several models have been proposed to describe particle scale ...

In the paper by using molecular dynamics method we investigate the sliding feature of different nano-scale specimens: single-crystal nickel evolving from amorphous pure Ni during shear deformation, Ni-P a layer and ...

Irradiation is a common method used for sterilizing objects in several fields. In the entomology sector, insects are sterilized through irradiation and released in to the wild to sexually compete with the population at ...

Since the last three decades, the study of reduction of iron-ore has gained much attention as it is considered a core process for the steel industry. Fluidized bed and moving bed reactors are utilized to reduce the iron-ore ...

Debris flows are fast gravity-driven flows consisting of multiple interacting phases. Due to their rapid movement and destructive power, structural mitigation measures have become essential in order to prevent extensive ...

This investigation examines the effect that particle concentration has on the dynamics of two-phase turbulent channel flows at low and high density ratios. In the literature, little explanation is offered for the existence ...

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 ...

This paper presents the implementation of the SPH Lagrangian method for the prediction of the oil slick diameter in the gravity-inertial spreading. Computer codes that predict the slick diameter generally use hybrid models ...

Incompressible smoothed particle hydrodynamics method has been used to simulate the sedimentation of a two-dimensional rigid elliptic disc in quiescent medium in presence of an external electric field. The motion of the ...