初始分布对气固提升管动力学模拟的影响

doi:10.3969/j.issn.0438-1157.2013.03.008

化工学报 ›› 2013, Vol. 64 ›› Issue (3): 834-840.doi: 10.3969/j.issn.0438-1157.2013.03.008

初始分布对气固提升管动力学模拟的影响

赵明朝^1,2, 鲁波娜², 王维², 黄卫星¹, 李静海²

1. 四川大学化学工程学院,四川成都 610065;
2. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京 100190

收稿日期:2012-06-01 修回日期:2012-11-14 出版日期:2013-03-05 发布日期:2013-03-05
通讯作者: 鲁波娜
作者简介:赵明朝(1988—),男,硕士研究生。
基金资助:
国家重点基础研究发展计划项目(2012CB215003);国家自然科学基金项目(21106157,21176240);中国科学院战略性先导科技专项(XDA07080102)。

Influence of initial distributions on hydrodynamic simulation of gas-solids riser

ZHAO Mingzhao^1,2, LU Bona², WANG Wei², HUANG Weixing¹, LI Jinghai²

1. School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China;
2. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2012-06-01 Revised:2012-11-14 Published:2013-03-05 Online:2013-03-05
Supported by:
supported by the National Basic Research Program of China(2012CB215003),the National Natural Science Foundation of China(21106157,21176240)and the "Strategic Priority Research Program" of Chinese Academy of Sciences(XDA07080102).

摘要/Abstract

摘要： 近期研究表明,合理的初始分布能够大幅缩短气固提升管瞬态模拟从初始到达稳定状态所需的过渡时间。以此为基础,研究发现,若以时均统计的流场信息作为模拟的初始分布,则模拟能够很快达到稳定。然后,对影响过渡时间的各个时均流场参数(如压力、气固相速度、空隙率分布等)进行了敏感性分析,发现提升管的空隙率轴向分布是其中最为关键的因素。最后,利用EMMS(energy-minimization multi-scale)模型预测的空隙率轴向分布作为气固提升管动力学模拟的初始条件进行模拟,结果表明,计算很快能达到稳定,且预测的颗粒通量等参数与实验吻合较好。

关键词: 初始分布, 空隙率, 提升管, 模拟, EMMS

Abstract: Recent studies have shown that a reasonable initial distribution can significantly reduce the transition time from initialization to reaching steady state for simulation of a riser.In this work,a series of simulations were performed to study the relationship between initial conditions and simulation efficiency.The results indicated that statistically-averaged distribution could be an effective initial distribution.Then,all the flow parameters for defining this initial distribution(i.e.pressure,gas and solids velocities,voidage) were investigated respectively for sensitivity analysis.It was found that transition time could be reduced greatly if a good axial distribution of voidage was provided at the beginning of the simulation.This finding was confirmed further by a hydrodynamical simulation of gas-solids flow in a riser with EMMS(energy-minimization multi-scale) model,in which EMMS model was used to provide a reasonable axial voidage distribution as the initial condition.The relevant results,such as solids flux,were in good agreement with experimental data.

Key words: initial distribution, voidage, riser, simulation, EMMS

中图分类号:

TQ021.1

赵明朝, 鲁波娜, 王维, 黄卫星, 李静海. 初始分布对气固提升管动力学模拟的影响[J]. 化工学报, 2013, 64(3): 834-840.

Mingzhao ZHAO, Bona LU, Wei WANG, Weixing HUANG, Jinghai LI. Influence of initial distributions on hydrodynamic simulation of gas-solids riser[J]. CIESC Journal, 2013, 64(3): 834-840.

参考文献 33

[1]	Tsuo Y P,Gidaspow D.Computation of flow patterns in circulating fluidized beds[J].AIChE Journal,1990,36(6):885-896
[2]	van der Hoef M A,Annaland M V S,Deen N G,Kuipers J A M.Numerical simulation of dense gas-solid fluidized beds:a multiscale modeling strategy[J].Annual Review of Fluid Mechanics,2008,40:47-70
[3]	Kawaguchi T,Tanaka T,Tsuji Y.Numerical simulation of two-dimensional fluidized beds using the discrete element method(comparison between the two- and three-dimensional models)[J].Powder Technology,1998,96(2):129-138
[4]	Ouyang J,Li J H.Discrete simulations of heterogeneous structure and dynamic behavior in gas-solid fluidization[J].Chemical Engineering Science,1999,54(22):5427-5440
[5]	Tsuji Y,Tanaka T,Yonemura S.Cluster patterns in circulating fluidized beds predicted by numerical simulation(discrete particle model versus two-fluid model)[J].Powder Technology,1998,95(3):254-264
[6]	Andrews A T,Loezos P N,Sundaresan S.Coarse-grid simulation of gas-particle flows in vertical risers[J].Industrial & Engineering Chemistry Research,2005,44(16):6022-6037
[7]	Peng B,Zhang C,Zhu J.Theoretical and numerical studies on the flow multiplicity phenomenon for gas-solids two-phase flows in CFB risers[J].International Journal of Multiphase Flow,2011,37(6):660-670
[8]	Zhang D Z,van der Heyden W B.High-resolution three-dimensional numerical simulation of a circulating fluidized bed[J].Powder Technology,2001,116(2/3):133-141
[9]	Liu Yaning(刘雅宁).EMMS-based simulation of gas-solid flow .Beijing:Chinese Academy of Sciences,2010
[10]	Milioli C,Milioli F.Reaching the statistical steady state regime in two-fluid simulation of risers[J].Powder Technology,2006,167(1):26-32
[11]	Liu Y N,Chen J H,Ge W,Wang J W,Wang W. Acceleration of CFD simulation of gas-solid flow by coupling macro-/meso-scale EMMS model[J].Powder Technology,2011,212(1):289-295
[12]	Li Jinghai(李静海).Multiscale modeling and method of energy-minimization for particle-fluid two-phase flow .Beijing:Chinese Academy of Sciences,1987
[13]	Li Jinghai(李静海),Ouyang Jie(欧阳洁),Gao Shiqiu(高士秋),Ge Wei(葛蔚),Yang Ning(杨宁),Song Wenli(宋文立).Multi-scale Modeling of Complex Systems of Particle-fluid(颗粒流体复杂系统的多尺度模拟)[M].Beijing:Science Press,2005
[14]	Li J H,Kwauk M.Particle-Fluid Two-Phase Flow:the Energy-Minimization Multi-Scale Method [M].Beijing:Metallurgy Industry Press,1994
[15]	Lu B N,Wang W,Li J H,Wang X H,Gao S Q,Lu W M,Xu Y H,Long J.Multi-scale CFD simulation of gas-solid flow in MIP reactors with a structure-dependent drag model[J].Chemical Engineering Science,2007,62(18/19/20):5487-5494
[16]	Xie N,Battaglia F,Pannala S.Effects of using two-versus three-dimensional computational modeling of fluidized beds(Ⅰ):Hydrodynamics[J].Powder Technology,2008,182(1):1-13
[17]	Lu Bona(鲁波娜).EMMS-based meso-scale model and its application in simulating gas-solid two-phase flows .Beijing:Chinese Academy of Sciences,2007
[18]	Wang W,Li J H.Simulation of gas-solid two-phase flow by a multi-scale CFD approach—extension of the EMMS model to the sub-grid level[J].Chemical Engineering Science,2007,62(1/2):208-231
[19]	Lu B N,Wang W,Li J H.Searching for a mesh-independent sub-grid model for CFD simulation of gas-solid riser flows[J].Chemical Engineering Science,2009,64(15):3437-3447
[20]	Das A K,de Wilde J,Heynderickx G J,Marin G B,Vierendeels J,Dick E.CFD simulation of dilute phase gas-solid riser reactors(Ⅰ):A new solution method and flow model validation[J].Chemical Engineering Science,2004,59(1):167-186
[21]	Brandani S,Zhang K.A new model for the prediction of the behaviour of fluidized beds[J].Powder Technology,2006,163(1/2):80-87
[22]	Zhao Y,Ding Y,Wu C,Cheng Y.Numerical simulation of hydrodynamics in downers using a CFD-DEM coupled approach[J].Powder Technology,2010,199(1):2-12
[23]	Cabezas Gómez L.Numerical study on the influence of various physical parameters over the gas-solid two-phase flow in the 2D riser of a circulating fluidized bed[J].Powder Technology,2003,132(2/3):216-225
[24]	Chalermsinsuwan B,Gidaspow D,Piumsomboon P.Two-and three-dimensional CFD modeling of Geldart A particles in a thin bubbling fluidized bed:comparison of turbulence and dispersion coefficients[J].Chemical Engineering Journal,2011,171(1):301-313
[25]	Guenther C,Syamlal M,Shadle L,Ludlow C.A numerical investigation of an industrial scale gas-solids CFB//Proceedings of the 7th International Conference on Circulating Fluidized Beds.Science Press,2002:483-489
[26]	Zhang N,Lu B N,Wang W,Li J H.Virtual experimentation through 3D full-loop simulation of a circulating fluidized bed[J].Particuology,2008,6(6):529-539
[27]	Yang N,Wang W,Ge W,Li J H.CFD simulation of concurrent-up gas-solid flow in circulating fluidized beds with structure-dependent drag coefficient[J].Chemical Engineering Journal,2003,96(1/2/3):71-80
[28]	Milioli C C,Milioli F E.On the statistical steady state gas-solid flow in a riser as predicted through a two-fluid simulation[J].Computational & Applied Mathematics,2009,28(3):259-275
[29]	Li J H,Tung Y,Kwauk M.Axial voidage profiles of fast fluidized beds in different operating regions//The 2nd International Conference on Circulating Fluidized Beds.Pergamon Press,1988:193-203
[30]	Xu G W,Sun G G,Gao S Q.Estimating radial voidage profiles for all fluidization regimes in circulating fluidized bed risers[J].Powder Technology,2004,139(2):186-192
[31]	Tung Y,Li J H,Kwauk M.Radial voidage profiles in a fast fluidized bed//Fluidization '88.Science Press,1988:139-146
[32]	Issangya A S,Bai D,Bi H T,Lim K S,Zhu J,Grace J R.Suspension densities in a high-density circulating fluidized bed riser[J].Chemical Engineering Science,1999,54(22):5451-5460
[33]	Wang W,Lu B N,Dong W G,Li J H.Multi-scale CFD simulation of operating diagram for gas-solid risers[J].The Canadian Journal of Chemical Engineering,2008,86(3):448-457

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初始分布对气固提升管动力学模拟的影响

Influence of initial distributions on hydrodynamic simulation of gas-solids riser

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