Bubble formation at a central orifice in a gas–solid fluidized bed predicted by three-dimensional two-fluid model simulations

2014 ◽  
Vol 245 ◽  
pp. 217-227 ◽  
Author(s):  
Vikrant Verma ◽  
Johan T. Padding ◽  
Niels G. Deen ◽  
J.A.M. Kuipers
Keyword(s):  
Fluidized Bed ◽  
Fluid Model ◽  
Bubble Formation ◽  
Three Dimensional ◽  
Model Simulations ◽  
Two Fluid Model ◽  
Two Fluid

Two-Fluid Model Simulations of the National Energy Technology Laboratory Bubbling Fluidized Bed Challenge Problem

2016 ◽  
Vol 55 (17) ◽  
pp. 5063-5077 ◽  
Author(s):  
Musango Lungu ◽  
Haotong Wang ◽  
Jingdai Wang ◽  
Yongrong Yang ◽  
Fengqiu Chen
Keyword(s):  
Fluidized Bed ◽  
Fluid Model ◽  
Energy Technology ◽  
Model Simulations ◽  
Bubbling Fluidized Bed ◽  
Two Fluid Model ◽  
Two Fluid

Bubbling Flow in a Multi-Jet Fluidized Bed

2020 ◽  
Author(s):  
Liwu Wang ◽  
Sijun Zhang
Keyword(s):  
Fluidized Bed ◽  
Fluidized Beds ◽  
Fluid Model ◽  
Bubble Formation ◽  
Model Parameters ◽  
Phase Flow ◽  
Two Phase ◽  
Single Jet ◽  
Two Fluid Model ◽  
Two Fluid

Abstract This work concerns with numerical simulation of dense gas-particle two-phase flow in a fluidized bed in the framework of two-fluid model, where attention is given to the bubble formation in a single-jet and multi-jet fluidized beds. The kinetic theory is implemented in the model to avoid empirically determined model parameters. The validity of the approach is confirmed through the comparison between the computed results and the measurements in the literature. The results show that increasing the number of jets results in different behavior in bubble formation and the flow pattern in a multi-jet bed is much more complex than that in a single-jet bed.

scholarly journals Gas interchange between bubble and emulsion phases in a 2D fluidized bed as revealed by two-fluid model simulations

2013 ◽  
Vol 215-216 ◽  
pp. 479-490 ◽  
Author(s):  
F. Hernández-Jiménez ◽  
A. Gómez-García ◽  
D. Santana ◽  
A. Acosta-Iborra
Keyword(s):  
Fluidized Bed ◽  
Fluid Model ◽  
Model Simulations ◽  
Two Fluid Model ◽  
Two Fluid

Simulations of vertical jet penetration using a filtered two-fluid model in a gas–solid fluidized bed

Particuology ◽  
2017 ◽  
Vol 31 ◽  
pp. 95-104 ◽  
Author(s):  
Shuyan Wang ◽  
Baoli Shao ◽  
Xiangyu Li ◽  
Jian Zhao ◽  
Lili Liu ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Fluid Model ◽  
Jet Penetration ◽  
Two Fluid Model ◽  
Two Fluid ◽  
Vertical Jet

Numerical Analysis of Heat Transfer Test of Supercritical Water in a Tube Using the Three-Dimensional Two-Fluid Model Code

2008 ◽  
Author(s):  
Takeharu Misawa ◽  
Hiroyuki Yoshida ◽  
Hidesada Tamai ◽  
Kazuyuki Takase
Keyword(s):  
Heat Transfer ◽  
Fluid Model ◽  
Three Dimensional ◽  
Design Procedure ◽  
Supercritical Pressure ◽  
Thermal Design ◽  
Energy Agency ◽  
Pressure Region ◽  
Two Fluid Model ◽  
Two Fluid

The three-dimensional two-fluid model analysis code ACE-3D is developed in Japan Atomic Energy Agency for the thermal design procedure on two-phase flow thermal-hydraulics of light water-cooled reactors. In order to perform thermal hydraulic analysis of SCWR, ACE-3D is enhanced to supercritical pressure region. As a result, it is confirmed that transient change in subcritical and supercritical pressure region can be simulated smoothly using ACE-3D, that ACE-3D can predict the results of the past heat transfer experiment in the supercritical pressure condition, and that introduction of thermal conductivity effect of the wall restrains fluctuation of wall.

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