Fluid dynamics of a pressurized fluidized bed: comparison between numerical solutions from two-fluid models and experimental results

被引：49
|
作者：
Enwald, H [1 ]
Almstedt, AE [1 ]
机构：
[1] Chalmers Univ Technol, Dept Thermo & Fluid Dynam, S-41296 Gothenburg, Sweden
来源：
CHEMICAL ENGINEERING SCIENCE | 1999年 / 54卷 / 03期
关键词：
fluidized bed; two-fluid model; granular flow theory; turbulence; validation;
D O I：
10.1016/S0009-2509(98)00187-0
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A validation of four different two-fluid model closures was carried out to investigate the effect of gas-phase turbulence, drift velocity and three dimensionality on the fluid dynamics of a bubbling fluidized bed. At atmospheric conditions, it is verified that gas-phase turbulence has a negligible effect for the bed material and operating conditions used in the investigation, whereas the validation shows some evidence that the gas-phase turbulence has a significant contribution for higher pressures. The drift velocity shows no noticeable effect on the results at any pressure. A comparison between two- and three-dimensional calculations at atmospheric pressure shows that the three-dimensional effects appear to be considerable. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：329 / 342
页数：14
相关论文
共 50 条
  • [21] A Numerical Study of Two-Fluid Models with Pressure and Velocity Relaxation
    Munkejord, Svend Tollak
    ADVANCES IN APPLIED MATHEMATICS AND MECHANICS, 2010, 2 (02) : 131 - 159
  • [22] Experimental and numerical study of spouted bed fluid dynamics
    Duarte, C. R.
    Murata, V. V.
    Barrozo, M. A. S.
    BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING, 2008, 25 (01) : 95 - 107
  • [23] Compressible-gas two-fluid modeling of isolated bubbles in a vertically vibrated fluidized bed and comparison with experiments
    Cano-Pleite, E.
    Hernandez-Jimenez, F.
    Acosta-Iborra, A.
    CHEMICAL ENGINEERING JOURNAL, 2015, 271 : 287 - 299
  • [24] Constitutive Models for Filtered Two-Fluid Models of Fluidized Gas-Particle Flows
    Igci, Yesim
    Sundaresan, Sankaran
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (23) : 13190 - 13201
  • [25] Simulation of Dense Gas-Solid Fluidized Bed Based on Two-Fluid Model
    Hu, Xiaoying
    Zhang, Junjiao
    Dong, Changqing
    Yang, Yongping
    2010 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2010,
  • [26] Prediction on immersed tubes erosion using two-fluid model in a bubbling fluidized bed
    He, Yurong
    Zhan, Wenbo
    Zhao, Yunhua
    Lu, Huilin
    Schlaberg, Inaki
    CHEMICAL ENGINEERING SCIENCE, 2009, 64 (13) : 3072 - 3082
  • [27] Two-fluid modeling of a wet spouted fluidized bed with wet restitution coefficient model
    Zhong, Hanbin
    Zhang, Yaning
    Xiong, Qingang
    Zhang, Juntao
    Zhu, Yuqin
    Liang, Shengrong
    Niu, Ben
    Zhang, Xinyu
    POWDER TECHNOLOGY, 2020, 364 : 363 - 372
  • [28] Numerical investigation on the scale-up rules of a supercritical water fluidized bed reactor using the two-fluid model
    Zhang, Hao
    Wu, Yinghui
    An, Xizhong
    Yu, Aibing
    ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS, 2021, 15 (01) : 1830 - 1842
  • [29] A novel methodology for simulating vibrated fluidized beds using two-fluid models
    Acosta-Iborra, A.
    Hernandez-Jimenez, F.
    de Vega, M.
    Briongos, J. V.
    CHEMICAL ENGINEERING JOURNAL, 2012, 198 : 261 - 274
  • [30] Experimental Fluid Dynamics Study in a Fluidized Bed by Deterministic Chaos Analysis
    Castilho, G. J.
    Cremasco, M. A.
    de Martin, L.
    Aragon, J. M.
    PARTICULATE SCIENCE AND TECHNOLOGY, 2011, 29 (02) : 179 - 196
12345