| 射流悬浮床气固两相流动的数值模拟 |
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| 引用本文： | 杨烨,王翠苹,李定凯,吕子安. 射流悬浮床气固两相流动的数值模拟[J]. 北京化工大学学报(自然科学版), 2003, 30(2): 23-27 |
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| 作者姓名： | 杨烨 王翠苹 李定凯 吕子安 |
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| 作者单位： | 清华大学煤的清洁燃烧技术国家重点实验室,北京,100084 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);G19990222; |
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| 摘 要： | 从多相流多流体模型、气相湍流k-ε模型与颗粒湍流kp模型出发,对底部向上射流悬浮床内气固两相流动进行数值模拟,得到了不同入口气速下各截面的颗粒相速度场、颗粒相脉动速度场的分布,结果与实验定性一致。计算结果与实验值对比的结果表明,数值模拟对进一步的研究有指导意义。数值结果与实测值间存在的差异则有待于进行直接三维流动模拟、进一步考察更为合理的边界条件及应用更先进的模型来解决。
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| 关 键 词： | 底部向上射流 气固两相流 多流体模型 kp模型 底部向上射流 气固两相流 多流体模型 kp模型 |
| 修稿时间： | 2002-12-13 |
Numerical simulation of gas-solid two-phase flow in a spouted suspension bed |
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| YANG Ye WANG Cui ping LI Ding kai LU Zi an. Numerical simulation of gas-solid two-phase flow in a spouted suspension bed[J]. Journal of Beijing University of Chemical Technology, 2003, 30(2): 23-27 |
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| Authors: | YANG Ye WANG Cui ping LI Ding kai LU Zi an |
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| Affiliation: | State Key Laboratory of Clean Combustion of Coal; Tsinghua University; Beijing 100084; China |
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| Abstract: | A mathematical model of the gas-solid flow in a suspension bed with upward jet was developed by the k-ε model of gas turbulent flow and kp model of particle turbulent flow, and then the solid velocity field and solid fluctuation velocity field on various sections were obtained at different apparent inlet gas velocities. Numerical modeling shows reasonable by comparing with experimental results and research results. The difference between numerical results and experiment data should be revised by futher applying 3D simulation ,more proper boundary conditions and advanced models. |
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| Keywords: | upward jet gas solid two phase flow multi fluid model k p model |
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