CFDDEM study on the mixing characteristics of binary

CFD-DEM study on the mixing characteristics of binary ...

Jan 16, 2018  (2019). CFD-DEM study on the mixing characteristics of binary particle systems in a fluidized bed of refuse-derived fuel. Particulate Science and Technology: Vol. 37, No. 1, pp. 51-59.

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CFD-DEM study on the mixing characteristics of binary ...

CFD-DEM study on the mixing characteristics of binary particle systems in a fluidized bed of refuse-derived fuel. / Wang, Li-Jun; Wei, Guang-Chao; Duan, Shu-Ping; Hou, Qin-Fu. In: Particulate Science and Technology, Vol. 37, No. 1, 02.01.2019, p. 51-59. Research output: Contribution to journal › Review Article › Research › peer-review

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Fluid flow assisted mixing of binary granular beds using ...

May 01, 2021  The CFD-DEM coupling approach is used to study the mixing characteristics of binary granular beds. The work examines the effect of the particle flow on the mixing characteristics of binary fluid beds with different particle properties and the impact of the presence of geometric interventions.

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CFD-DEM modelling of mixing and segregation of binary ...

Jan 24, 2019  10%  Solid-liquid fluidized beds of binary mixtures are widely used in many industries. Particle segregation may occur as particles can differ in size, density, or shape. Extensive studies have been conducted in the past to understand the effects of particlesize and density on the mixing and segregation, but the effect of particle shape has not been well addressed.

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Particle-Scale Simulation of Solid Mixing Characteristics ...

Aug 27, 2020  Therefore, the CFD-DEM approach is adopted in the current simulation. The mixing behavior of binary particles in the fluidizing apparatus has been seldom revealed at particle-scale in the literature. Using the CFD-DEM approach, Zhang et al. [31] evaluated the segregation behavior in a binary

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CFD?DEM Simulation of Influence of Particle Shape on ...

CFD?DEM Simulation of Influence of Particle Shape on Binary Particles Mixing Characteristics in Fluidized Bed: Lijun WANG *, Guangchao WEI, Shuping DUAN, Lingfeng XU: College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liaoning 110136, China

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CFD?DEM Simulation of Influence of Particle Shape on ...

CFD?DEM Simulation of Influence of Particle Shape on Binary Particles Mixing Characteristics in Fluidized Bed: Lijun WANG *, Guangchao WEI, Shuping DUAN, Lingfeng XU: College of Energy and Environment, Shenyang Aerospace University, Shenyang, Liaoning 110136, China

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CFD-DEM modelling of mixing of granular materials in ...

Feb 01, 2020  In this study, CFD-DEM approach is used to simulate a fluidized bed with different jet numbers. Based on the same gas flow rate, cases with different jet numbers are compared in terms of the maximum bed pressure drop, bed height, and mixing index. The computational results are also compared with the experimental results.

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Instantaneous mixing characteristics of binary mixtures ...

Dec 01, 2020  In this study, the instantaneous mixing characteristics of binary particles were measured by capacitance probes in a 2-D quasi gas‒solid fluidised bed. By quantitatively analysing the mixing process, we examined the effects of density ratio and superficial gas velocity on mixing

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Numerical Analysis of Solids Mixing in Pressurized ...

Jan 06, 2010  CFD-DEM study on the mixing characteristics of binary particle systems in a fluidized bed of refuse-derived fuel. Particulate Science and Technology 2019, 37 (1) , 51-59.

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Dr. Qinfu Hou - Engineering Monash University

Apr 13, 2021  J33 L.J. Wang, G.C. Wei, S.P. Duan, Q.F. Hou, CFD-DEM study on mixing characteristics of binary particle systems in a fluidized bed of refuse derived fuel, Particulate Science and Technology, 37 (2019) 51-59.

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Segregation and dispersion of binary solids in liquid ...

Oct 02, 2016  However, the majority of the CFD-DEM studies published so far were found to have focused on gas fluidized beds (Peng et al., 2014a), whilst a very few of CFD-DEM studies were related to solid–liquid fluidised beds. Table 1 lists some of the typical CFD-DEM studies reported in the literature on the SLFBs. Critical remarks on these works are ...

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Experimental study on mixing behaviors of wet particles in ...

Dec 01, 2018  The mixing of wet particles can be improved when the liquid saturation S, fluidization gas velocity U f, fluidization time t increases. Besides, decreasing particle diameter d p can also improve the mixing of wet particles. (3) Liquid addition can bring two opposite effects on the mixing of a binary mixture of particles with different densities.

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Particle-Scale Simulation of Solid Mixing Characteristics ...

The behavior of solid mixing dynamic is of profound significance to the heat transfer and reaction efficiencies in energy engineering. In the current study, the solid mixing characteristics of binary particles in the bubbling fluidized bed are further revealed at particle-scale. Specifically, the influences of gas superficial velocity, Sauter mean diameter (SMD) in the system and the range ...

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Developments in the theory of particle mixing - Lacey ...

Abstract It is shown that there are three components in a mixing process: convection, diffusion and shear. The concepts involved in analysing complete and partial mixtures are examined and a statis...

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检索结果-保定学院图书馆 - lib.bdu.cn

保定学院图书馆. 首页; 资源. 数据库导航; 期刊导航; 文献资源导航; 新书通报; 服务

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Artykuły w czasopismach: „Particle shape; DEM; Flat ...

The article presents the results of a study of technological and morphological characteristics of stone tool collections from the Early Neolithic settlement assemblages of Barabinsk forest-steppe containing flat-bottomed ware – Avtodrom-2, Avtodrom-2/2, Staryi Moskovsky Trakt-5 settlements.

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CFD-DEM study on the mixing characteristics of binary ...

Jan 16, 2018  (2019). CFD-DEM study on the mixing characteristics of binary particle systems in a fluidized bed of refuse-derived fuel. Particulate Science and Technology: Vol. 37, No. 1, pp. 51-59.

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Mixing and Segregation Characteristics of Binary Granular ...

The mixing and segregation in classical and tapered fluidized beds is reported [11]. This is based on the re- views [12]. It is well known that mixing degree of solids in a bi- nary fluidized bed with a constant cross-section is always between extremes, i.e. complete separation and complete mixing of the solid phases. Completely separated binary

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Mixing and Segregation Characteristics of Binary Granular ...

The mixing and segregation in classical and tapered fluidized beds is reported [11]. This is based on the reviews [12]. It is well known that mixing degree of solids in a binary fluidized bed with a constant cross-section is always between extremes, i.e. complete separation and complete mixing of the solid phases.

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and Sands in Fluidized Bed Based on CFD-DEM Simulation

particle mixing characteristics at di erent gas velocities. There has also been increasing research on the mixing behavior of binary particles by CFD-DEM method gas flow behavior in fluidized beds: Ma et al. [25] studied the mixture of binary particles in 2-D simulation in which particle shape was

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Numerical studies of solid–solid mixing behaviors in a ...

Feb 01, 2014  In order to study binary solid mixing in a downer reactor, numerical simulations were conducted to quantify the mixing characteristics under normal and tangential arrangements of lateral injection nozzle near inlet of the downer. In numerical simulations, sand particles were simulated to flow from top of the downer while coal particles were ...

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Mixing and Segregation Characteristics of Binary Granular ...

The particle flow pattern, mixing and granule segregation in a tapered fluidized bed have been studied along with the hydrodynamics. At first the bed of varying total mass and granule fractions is fluidized then the bed is defluidized to freeze the composition, the bed is sectioned to layers and the composition in each layer is determined by sieving.

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Dr. Qinfu Hou - Engineering Monash University

Apr 13, 2021  J33 L.J. Wang, G.C. Wei, S.P. Duan, Q.F. Hou, CFD-DEM study on mixing characteristics of binary particle systems in a fluidized bed of refuse derived fuel, Particulate Science and Technology, 37 (2019) 51-59.

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Energies Free Full-Text A Mixing Behavior Study of ...

The present paper studied the mixing characteristics of biomass and sands in a fluidized bed. A three dimensional model is calculated on the basis of computational fluid dynamics (CFD) and the discrete element method (DEM), while the lab-scale experiments under similar conditions are conducted. To investigate the mixing behavior of biomass and sands, particle distribution, particles time ...

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CFD-DEM investigation on mixing of rod-like particles in ...

CFD-DEM investigation on mixing of rod-like particles in spout-fluid bed: Hua-qing MA(),Yong-zhi ZHAO*()Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China

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Experimental study on mixing behaviors of wet particles in ...

Dec 01, 2018  The mixing of wet particles can be improved when the liquid saturation S, fluidization gas velocity U f, fluidization time t increases. Besides, decreasing particle diameter d p can also improve the mixing of wet particles. (3) Liquid addition can bring two opposite effects on the mixing of a binary mixture of particles with different densities.

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Effect of Bed Thickness on the Segregation Behavior of ...

Feb 25, 2010  Discrete particle simulation has been recognized as a useful numerical technique to elucidate the fundamentals of particle−fluid flow, in particular, gas fluidization. In general, it is achieved by combining discrete element method (DEM) for solid flow with computational fluid dynamics (CFD) for continuum gas. Limited by computational capability, such studies are mainly conducted using a two ...

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Computational Fluid Dynamics-Discrete Element Method ...

May 22, 2013  Solid mixing dynamics is of vital important to the processing rate, achievable homogeneity and product quality in the related industries of granular material. In this paper, solid mixing behaviors within a baffle-type internally circulating fluidized bed (ICFB) are numerically investigated using a three-dimensional computational fluid dynamics-discrete element method (CFD-DEM), in which the ...

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Developments in the theory of particle mixing - Lacey ...

Abstract It is shown that there are three components in a mixing process: convection, diffusion and shear. The concepts involved in analysing complete and partial mixtures are examined and a statis...

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Mixing and Segregation Characteristics of Binary Granular ...

where the direction of gas flow is normal to the surface. The flow rates used for inlet are determined from the superficial gas velocity required. No solids are intro- duced through

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