Direct numerical simulation of granular plug flow in a horizontal pipe. (The case of cohesionless particles.)

Tanaka, Toshitsugu; Ishida, Taiichiro; Tsuji, Yutaka

doi:10.1299/kikaib.57.456

Cited by 30 publications

(23 citation statements)

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“…The contact force f C is divided into normal (f Cnij ) and tangential (f Ctij ) forces, and these forces are modeled in Fig. 1 (Cundall and Strack, 1979). These two forces are given by the following equations (Tanaka et al, 1991):…”

Section: Force Balance Acting On Particlementioning

confidence: 99%

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Numerical simulation of particle motion in vibrated fluidized bed

Tatemoto

Mawatari

Yasukawa

et al. 2004

Chemical Engineering Science

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Section: Force Balance Acting On Particlementioning

confidence: 99%

“…The spring coe cients k n and k t are calculated from the following equations based on methods of Hertz's and Mindlin and Deresezewicz (1953), respectively, and these methods are reported by Tanaka et al, 1991. The damping coe cients Á are determined from the method of Tanaka et al (1991):…”

Section: Force Balance Acting On Particlementioning

confidence: 99%

Numerical simulation of particle motion in vibrated fluidized bed

Tatemoto

Mawatari

Yasukawa

et al. 2004

Chemical Engineering Science

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“…(3), N p is the number of non-spherical particles, N e is the number of elements belonging to a non-spherical particle and N w is the number of walls. The contact forcesF cee and F cew are based on DEM for spherical particle i contacting with spherical particle j [9,13,27,28].…”

Section: Computational Modelsmentioning

confidence: 99%

Discrete Element Method Simulation of Cylinder‐Shaped Particle Flow in a Gas‐Solid Fluidized Bed

et al. 2009

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Discrete element method (DEM) simulation of the flow of cylinder-shaped particles in a gas-solid fluidized bed has been carried out three-dimensionally. The gas and particle motions were modeled with the k-e turbulent model and DEM simulation, respectively. The cylinder-shaped particles were elongated by several spheres, which were described by a cylinder with hemi-spherical ends of the same radius. Drag-, contact-and gravitational forces acting on each individual particle were considered when establishing the mathematical models. Simulated flow patterns and pressure drops at different superficial gas velocities were in good agreement with the experimental results from a visual fluidized bed. In addition, some hydrodynamics of gas/cylinder-shaped particle flow, i.e., bed expansion ratio, particle volume fraction, particle velocity and mean percentage of particle collisions, were obtained at various superficial gas velocities.

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“…1 (Cundall and Strack, 1979). These two forces are given by the following equations (Tanaka et al, 1991):…”

Section: Force Balance Acting On Particlementioning

confidence: 99%

“…The spring coefficients k n and k t are calculated from the equations based on methods of Hertz's, Mindlin and Deresezewicz (1953), respectively. The damping coefficient is determined from the method of Tanaka et al (1991).…”

Section: Force Balance Acting On Particlementioning

confidence: 99%