Numerical simulation of air and particle motions in bubbling fluidized bed of small particles

Yuu, Shinichi; Umekage, Toshihiko; Johno, Yuuki

doi:10.1016/s0032-5910(99)00277-6

Cited by 89 publications

(41 citation statements)

References 15 publications

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“…The results also present an unusual phenomenon which is easily happen under some conditions. We have used Distinct Element Method (DEM) 5) for the calculation of the multi-body interaction forces among coke particles and Finite Difference Method for the computation of Navier-Stokes equations with the interaction terms between gas and coke particles.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Blast Furnace Raceway Depth and Height, and Effect of Wall Cohesive Matter on Gas and Coke Particle Flows

Umekage

Yuu²,

Kadowaki

2005

ISIJ Int.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Blast Furnace Raceway Depth and Height, and Effect of Wall Cohesive Matter on Gas and Coke Particle Flows

Umekage

Yuu²,

Kadowaki

2005

ISIJ Int.

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“…11,14) An elastic spring and a viscous dashpot between particles were introduced to calculate the force on a given particle by the contact with the other particles. In the shearing direction, a friction slider was also applied to calculate the slip at the contact point.…”

Section: Particle Calculationmentioning

confidence: 99%

Large Scale Simulation of Coke and Iron Ore Particle Motions and Air Flow in Actual Blast Furnace

Yuu¹,

Umekage²,

Matsuzaki³

et al. 2010

ISIJ Int.

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“…DEM 12,15) were used to simulate the particle motions. An elastic spring and a viscous dashpot model between particles were introduced to calculate the multi-body forces on a given particle by the contacts with the other particles.…”

Section: Particle Calculationmentioning

confidence: 99%

Numerical Simulation of Particle and Air Velocity Fields in Raceway in Model Blast Furnace and Comparison with Experimental Data (Cold Model)

Yuu¹,

Umekage

Kadowaki

2010

ISIJ Int.

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Flows of solid particles and air in a model blast furnace have been simulated using Distinct Element Method (DEM) for the particles and Finite Difference Method for the numerical analysis of Navier-Stokes equations with the interaction terms between the air and the particles. The flow of solid particles, the air flow, the raceway and the packing fraction distribution are presented. The raceway depth, the diameter of particle inflow area and the raceway height which quantitatively represent a raceway are also presented and compared with the experimental data (CAMP-ISIJ, 16 (2003)). The fairly good agreement obtained by the comparison indicates that our simulation results are sound and the simulation results would represent the flow mechanisms of the solid particles and the air in the model blast furnace, and the simulation method that the Lagrangian motion of particles and the Eulerian motion of the air are simultaneously solved is a useful tool for predicting the flow fields of particles and the gas in a blast furnace. Unsteady state solutions of these flows suggest that dynamical characteristics in the model blast furnace are unstable and fluctuate, and that an unusual phenomenon would happen under some conditions even in the small scale model blast furnace.

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Numerical simulation of air and particle motions in bubbling fluidized bed of small particles

Cited by 89 publications

References 15 publications

Numerical Simulation of Blast Furnace Raceway Depth and Height, and Effect of Wall Cohesive Matter on Gas and Coke Particle Flows

Numerical Simulation of Blast Furnace Raceway Depth and Height, and Effect of Wall Cohesive Matter on Gas and Coke Particle Flows

Large Scale Simulation of Coke and Iron Ore Particle Motions and Air Flow in Actual Blast Furnace

Numerical Simulation of Particle and Air Velocity Fields in Raceway in Model Blast Furnace and Comparison with Experimental Data (Cold Model)

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