| 用扩散流动模型分析悬浮床内的气固两相向上流动 |
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| 引用本文： | 尚智,杨瑞昌,钟勇,巨泽建. 用扩散流动模型分析悬浮床内的气固两相向上流动[J]. 中国化学工程学报, 2003, 11(5): 497-503 |
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| 作者姓名： | 尚智 杨瑞昌 钟勇 巨泽建 |
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| 作者单位： | [1]StateKeyLaboratoryofCleanCombustionofCoal,TsinghuaUniversity,Beijing100084,China [2]GraduateSchoolofEngineering,KyushuUniversity,Fukuoka812-8581,Japan |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | A mathematical model of two-dimensional turbulent gas-particle two-phase flow based on the modified diffusion flux model (DFM) and a numerical simulation method to analyze the gas-particle flow structures are developed. The modified diffusion flux model, in which the acceleration due to various forces is taken into account for the calculation of the diffusion velocity of particles, is applicable to the analysis of multi-dimensional gas-particle two-phase turbulent flow. In order to verify its accuracy and efficiency, the numerical simulation by DFM is compared with experimental studies and the prediction by κ-ε-κp two-fluid model, which shows a reasonable agreement. It is confirmed that the modified diffusion flux model is suitable for simulating the multi-dimensional gas-particle two-phase flow.
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| 关 键 词： | 扩散流动模型 分析 悬浮床 气固两相流 流动特性 数值模拟 湍流 |
| 修稿时间： | |
A Numerical Simulation of Gas-Particle Two-Phase Flow in a Suspension Bed Using Diffusion Flux Model |
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| FUKUDA Kenji,SHANG Zhi,YANG Ruichang,FUKUDA Kenji,ZHONG Yong,JU Zejian. A Numerical Simulation of Gas-Particle Two-Phase Flow in a Suspension Bed Using Diffusion Flux Model[J]. Chinese Journal of Chemical Engineering, 2003, 11(5): 497-503 |
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| Authors: | FUKUDA Kenji SHANG Zhi YANG Ruichang FUKUDA Kenji ZHONG Yong JU Zejian |
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| Affiliation: | State Key Laboratory of Clean Combustion of Coal, Tsinghua University, Beijing,100084, China Graduate School of Engineering, Kyushu University, Fukuoka,812-8581, Japan |
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| Abstract: | A mathematical model of two-dimensional turbulent gas-particle two-phase flow based on the |
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| Keywords: | diffusion flux model gas-solid two-phase flow turbulent flow numerical simulation |
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