| MODELING TWO-PHASE FLOW IN PULSED FLUIDIZED BED |
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| 引用本文： | DayouLiu‘ GuodongJin. MODELING TWO-PHASE FLOW IN PULSED FLUIDIZED BED[J]. 中国颗粒学报, 2003, 1(3): 95-104. DOI: 10.1016/S1672-2515(07)60119-5 |
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| 作者姓名： | DayouLiu‘ GuodongJin |
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| 作者单位： | [1]Authortowhomcorrespondenceshouldbeaddressed [2]InstituteofMechanics,ChineseAcademyofSciences,Beijing100080,P.R.China |
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| 基金项目： | 中国科学院基金，中国科学院资助项目 |
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| 摘 要： | Mathematical models for pulsed fluidization are systematically discussed. Several undetermined constitutive relationships are included in the General Two-Fluid Model (GTFM), the adjustable parameters of which are always chosen at will to some extent. Although there are no adjustable parameters in the Basic Two-Fluid Model (BTFM), its eigenvalues are complex numbers and it is ill-posed for initial-value problems. The Local Equilibrium Model (LEM), a further simplification of BTFM, is discussed at length. Although the model is very simple, it is highly capable of simulating complex processes in pulsed fluidization over a broad range of operating parameters, and its numerical results well fit experimental results in both the variation of bed height and the distribution of particle concentration as fluidizina velocitv varies.
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| 关 键 词： | 两相流 流体模型 脉冲流化 数值模拟 局部平衡模型 流体力学 |
| 收稿时间： | 2003-04-22 |
MODELING TWO-PHASE FLOW IN PULSED FLUIDIZED BED |
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| Dayou Liu,Guodong Jin. MODELING TWO-PHASE FLOW IN PULSED FLUIDIZED BED[J]. China Particuology, 2003, 1(3): 95-104. DOI: 10.1016/S1672-2515(07)60119-5 |
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| Authors: | Dayou Liu Guodong Jin |
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| Affiliation: | 1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. School of Petroleum Engineering, Northeast Petroleum University, Daqing, 163318, China;1. College of Chemistry and Material Engineering of Hunan University of Arts and Science, Hunan Province, Cooperative Innovation Center for The Construction & Development of Dongting Lake Ecological Economic Zone, Changde 415000, China;2. School of Chemistry and Chemical Engineering of Hunan University of Science and Technology, Xiangtan 411201, China;3. College of Chemistry and Material of Yulin Normal University, Yulin 537000, China |
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| Abstract: | Mathematical models for pulsed fluidization are systematically discussed. Several undetermined constitutive relationships are included in the General Two-Fluid Model (GTFM), the adjustable parameters of which are always chosen at will to some extent. Although there are no adjustable parameters in the Basic Two-Fluid Model (BTFM), its eigenvalues are complex numbers and it is ill-posed for initial-value problems. The Local Equilibrium Model (LEM), a further simplification of BTFM, is discussed at length. Although the model is very simple, it is highly capable of simulating complex processes in pulsed fluidization over a broad range of operating parameters, and its numerical results well fit experimental results in both the variation of bed height and the distribution of particle concentration as fluidizing velocity varies. |
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| Keywords: | pulsed fluidization two-phase flow Two-Fluid Model Local Equilibrium Model numerical simulation |
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