numerical simulation of free flowing particles mixing in v

Numerical simulation of free flowing particles mixing in V ...

10%  Mar 25, 2019  The aim of this work is to develop a novel method for the simulation of a mixing operation in a V-blender, based on the mathematical model of rigid solid objects with rigid contact between particles and between particles and the blender. This model is able to simulate a mixing performance of free flowing particles which represent a rigid ...

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Numerical simulation of gas-particle two-phase mixing ...

A plane air mixing layer loaded with spherical glass particles is simulated by the three-dimensional vortex method proposed for gas-particle two-phase free turbulent flow by the authors in a prior ...

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Numerical simulation of particle dispersion in the ...

Abstract— The work is devoted to the numerical simulation of a supersonic planar mixing layer of multispecies gases with the particles injection at the interface of flows. It is assumed that the turbulent flow is quasi-two-dimensional, and the solution of the Navier-Stokes equations for multispecies gaseous phase is performed with

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Numerical simulation of wet particle flows in an intensive ...

Mar 15, 2019  The liquid properties involving wet particles in simulations are those of water. The density, surface tension, and contact angle were set to 1000 kg/ m 3, 0.073 N/m and 0 ° respectively [].The physical properties parameters used in DEM simulation are summarized in Table 1.It should be noted that the contact angle of water is only dependent on the material properties of particle and wall,

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Particle mixing in free shear flows - ScienceDirect

Jan 01, 1988  The results of the where N is the total number of particles in the system numerical simulation predict that the turbulent ax- at time T, R;(T) is the dimensionless radial location of isymmetric mixing layer between the core of the jet the ith particle at time T and R;0 is the dimensionless and the quiescent ambient environment is capable of ...

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Analysis of the Mixing of Solid Particles in A Vertical ...

processes. The application of numerical simulations is desirable when investigating mixing because they allow for better control of physical properties and a faster analysis. In other words, the numerical simulation can set ideally the physical properties of all particles, although the particles

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Numerical simulation of particulate flow with liquid ...

Apr 03, 2000  A numerical simulation of mono-sized spherical particle flows with a small amount of water in a centrifugal tumbling granulator was made by using discrete element method (DEM). A model for the inter-particle force due to a liquid bridge was applied to the present work because granulating processes are usually performed by adding binding liquid.

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Numerical simulation of gas-particle two-phase mixing ...

A plane air mixing layer loaded with spherical glass particles is simulated by the three-dimensional vortex method proposed for gas-particle two-phase free turbulent flow by the authors in a prior ...

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Numerical flow simulation of fresh concrete with viscous ...

Oct 01, 2017  The goal of this paper is to develop a numerical approach for fresh concrete's flow, by using the mesh free method, called Smoothed Particle Hydrodynamics (SPH), and a new rheological model named VGM (viscous granular material) model, which can describe the nonlinear, shearing time-dependent, and pressure-dependent characteristics of the flow behaviors of fresh concrete.

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Numerical simulation analysis of four‐stage variable ...

αρL v n (1) CD = 24 Re, Re ≤ 0.5 24(1.0 + 0.25Re 0.687) Re, 0.5 1000 (2) where ρ is the fluid density, n is the viscosity of the fluid, L is the diameter of the abrasive sphere, v is the relative velocity between the abrasive particles and the fluid, α is the free volume of the CFD grid unit.

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Fully Resolved Numerical Simulation of Free Convection of ...

Feb 11, 2020  In this research, the direct numerical simulations are applied to study the sedimentation of spherical particles in an unsteady thermal condition in a viscous flow. The immersed boundary method is used to fully resolve the hydrodynamic interactions of solid–fluid phases, and a volume of fluid approach is employed to account the heat transfer both inside and outside the solid particles.

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(PDF) A numerical study on the flow and mixing in a ...

Conclusions better mixing is obtained when a larger number of magnetic particles are used, By developing a numerical code based on finite volume method, we have investigated the characteristics of the flow 3.2.4 Effect of magnitude of magnetic force and mixing in a micromixer using magnetic particles.

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Direct numerical simulation of turbulence modulation by ...

The flow parameters for reference are shown in table 1, and the particle properties are shown in table 2, where Case A is the particle-free flow and Cases B–F are particle-laden flows with inertia particles of different diameters.

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Direct numerical simulation of a three-dimensional ...

With the Eulerian-Lagrangian point-source method, the effects of dispersed particles on turbulent structures and asymmetric properties are systematically investigated in a three-dimensional spatially evolving compressible mixing layer with the convective Mach number up to 1.2. Particles interact with the mixing layer through two-way coupling, and three simulations with different particle ...

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Magnetofluidic micromixer based on a complex rotating ...

Rapid and efficient mixing of particles and fluids in a microfluidic system is of great interest for chemical and biochemical analysis. The present paper investigates magnetofluidic mixing induced by a rotating magnetic field from a number of permanent magnets. Numerical simulation shows the complex magnetic field in the mixing chamber.

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Numerical Simulation of the Water Surface Movement with ...

May 31, 2020  In this paper, on the basis of the three-dimensional Navier-Stokes equation, an incompressible fluid flow has been studied numerically when a dam is broken. In order to simulate this problem, a modification of the standard VOF model was carried out and a combination of Newtonian and non-Newtonian models was used. The flow effect on the transport of solid particles and mobile

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The influence of particles on the spatial stability of two ...

Oct 01, 1990  A modified Rayleigh equation has been derived for the study of spatial instability of gas--particle two-phase mixing layers. The particles are assumed to have a material density much greater than the carrier fluid. The mathematical model is based on the assumptions that the mean flow

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Acoustohydrodynamic tweezers via spatial arrangement of ...

The resulting flow field on the operating surface agrees well with both the experimental and numerical simulation results (Fig. 2, E and F, and fig. S3B). However, because we ignore the existence of plate barriers that are submerged in the liquid, the predicted flow field on the edge plane only preserves part of the shape characteristics when ...

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Journal of Chemical Physics

Journal of Computational PhysicsVolume 15, Number 3, July, 1974. Joe F. Thompson and Frank C. Thames and C. Wayne Mastin Automatic numerical generation of body-fitted curvilinear coordinate system for field containing any number of arbitrary two-dimensional bodies . . 299--319 James C. S. Meng A study of convective heat transfer in a supersonic ...

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Microscale and Nanoscale Heat Transfer Analysis, Design ...

Then, numerical studies of several special cases, including liquid flow in wavy microchannels, gaseous flow in microscale porous media, gas flow and heat transfer in micronozzles, simultaneously developing flow and heat transfer in microtubes with thick walls, and electroosmotic flow in

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V-Blender Segregation Patterns for Free-Flowing Materials ...

Numerical simulation of free flowing particles mixing in V-blender. Article. Full-text available. Mar 2019; ... The experimental results were discussed and compared to the numerical simulation ...

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Numerical simulation for gas–particle two-phase free ...

A plane air mixing layer loaded with spherical glass particles is simulated by the three-dimensional vortex method proposed for gas-particle two-phase free turbulent flow by the authors in a prior ...

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Direct numerical simulation of a three-dimensional ...

Aug 22, 2019  Particles interact with the mixing layer through two-way coupling, and three simulations with different particle diameters are conducted and compared with the particle-free flow. The underlying mechanisms responsible for the mixing layer asymmetry are also revealed through analyzing the self-similar equations of the particle-laden spatially ...

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Numerical Simulation of the Water Surface Movement with ...

May 31, 2020  In this paper, on the basis of the three-dimensional Navier-Stokes equation, an incompressible fluid flow has been studied numerically when a dam is broken. In order to simulate this problem, a modification of the standard VOF model was carried out and a combination of Newtonian and non-Newtonian models was used. The flow effect on the transport of solid particles and mobile

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Direct numerical simulation of particle-laden turbulent ...

Jan 05, 2016  At larger times t b ≥ 110, all the terms have been decreased significantly, fluctuating at lower values than in the particle-free flow. In a time-averaged sense, the terms in the budget cancel out each other, resulting in the slightly lower values of 〈 〉 V relative to those of the flow without particles.

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Numerical Simulation of Granular Particles MOVEMent in ...

Sep 01, 2008  A method to couple continuum and discontinuum flow has been developed to simulate granular particles movement in a flowing fluid. The movement of granular particles is modeled using the discrete element method, while the finite volume scheme is used to simulate fluid flow. The existence of particles in the flow region results in a reduction in the amount of fluid flow in that region. The ...

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(PDF) Numerical Simulation of Contrail Formation Using a ...

Download Free PDF. Download Free PDF. Numerical Simulation of Contrail Formation Using a Simplified Wing-Injector Configuration. 2009. Olivier Thual. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper.

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Numerical Simulation of Fine Particle Solid-Liquid Two ...

Feb 18, 2021  At present, some progress has been made in numerical simulation of centrifugal pump flow performance [25–36]. However, the overall flow performance of the centrifugal pump, especially the two-phase flow performance under the condition of high concentration of fine particles, is not sufficiently studied due to the complexity of solid-liquid ...

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Mathematics Free Full-Text Numerical Analysis of Flow ...

This article presents numerical simulation of flow in the discharge object with the welded siphon and the free water level. The main numerical tool used in this study is the lattice Boltzmann method combined with the Volume-of-Fluid approach and the Smagorinski LES model. Some aspects of the numerical method are discussed, especially the formulation of the outlet boundary condition.

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Migration mechanism of fine particles in aquifer during ...

Apr 30, 2020  Through analysis, it is considered that the fine particles in sand migrate to form a dense structure, which hinders the increase of water flow. In order to investigate the migration mechanism of fine particles in the aquifer during water injection, experimental tests and numerical simulations were conducted in the present study.

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Discrete particle simulation of particle–fluid flow: model ...

Xu, B. H. Yu, A. B. 1998 Comments on the paper ‘Numerical simulation of the gas–solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics’: reply. Chem. Engng Sci. 53, 2646 – 2647.Google Scholar

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Simulation of three-dimensional rapid free-surface ...

Simulation of three-dimensional rapid free-surface granular flow past different types of obstructions using the SPH method AHMED M. ABDELRAZEK,1,2 ICHIRO KIMURA,1 YASUYUKI SHIMIZU1 1Hydraulic Research Laboratory, Graduate School of Engineering, Hokkaido University, Hokkaido, Japan 2Irrigation Eng. Hydraulic Department, Faculty of Engineering, Alexandria University, Alexandria,

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The influence of particles on the spatial stability of two ...

Oct 01, 1990  A modified Rayleigh equation has been derived for the study of spatial instability of gas--particle two-phase mixing layers. The particles are assumed to have a material density much greater than the carrier fluid. The mathematical model is based on the assumptions that the mean flow

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Characteristics of turbulence transport for momentum and ...

Mar 03, 2017  The dynamic and thermal performance of particle-laden turbulent flow is investigated via direction numerical simulation combined with the Lagrangian point-particle tracking under the condition of two-way coupling, with a focus on the contributions of particle feedback effect to momentum and heat transfer of turbulence. We take into account the effects of particles on flow drag and Nusselt ...

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