| 分解炉内气固两相流动特性的数值模拟 |
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| 引用本文： | 郑建祥,刘文铁,赵云华,赵修建,陆慧林.分解炉内气固两相流动特性的数值模拟[J].硅酸盐学报,2005,33(7):853-858. |
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| 作者姓名： | 郑建祥 刘文铁 赵云华 赵修建 陆慧林 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院,哈尔滨,150001;武汉理工大学材料科学与工程学院,武汉,430070 |
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| 基金项目： | 武汉理工大学硅酸盐材料工程教育部重点实验室资助项目。 |
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| 摘 要： | 采用Eulerian—Eulerian气固两相双流体模型、大涡模拟方法模拟气相湍流流动、颗粒动力学理论模拟颗粒相流动，数值模拟分解炉内气固两相流体的动力特性。用小波分析方法研究分解炉内气固两相湍流特性。在分解炉中心区域形成高浓度-高速度的上升颗粒流、在壁面区域形成高浓度、低速度的下降颗粒流，构成颗粒的内循环流动。
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| 关 键 词： | 分解炉 气固两相流 大涡模拟 颗粒动力学理论 |
| 文章编号： | 0454-5648(2005)07-0853-06 |
| 修稿时间： | 2004年10月20 |
NUMERICAL SIMULATIONS OF HYDRODYNAMICS FOR GAS- SOLID TWO-PHASE FLOW IN CALCINERS |
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| ZHENG Jianxiang,Liu Wentie,Zhao Yunhua,ZHAO Xiujian,Lu HuiLin.NUMERICAL SIMULATIONS OF HYDRODYNAMICS FOR GAS- SOLID TWO-PHASE FLOW IN CALCINERS[J].Journal of The Chinese Ceramic Society,2005,33(7):853-858. |
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| Authors: | ZHENG Jianxiang Liu Wentie Zhao Yunhua ZHAO Xiujian Lu HuiLin |
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| Affiliation: | ZHENG Jianxiang~1,LIU Wentie~1,ZHAO Yunhua~1,ZHAO Xiujian~2,LU Huilin~1 |
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| Abstract: | An EulerianEulerian gassolid two-fluid model was proposed in combination with a large eddy simulation to model gas turbulence with the kinetic theory of granular flow to particle phase. The flow properties of gas and particle phases were numerically simulated in a DD calciner. Wavelet analysis was used to determine the fluid dynamics of gassolid flow in the calciner. The simulation results indicated an up-flow with high concentrationhigh velocity of particles in the center and a down-flow with high concentration-low velocity of particles at the walls. This will result in the internal circulation of particles in the calciners. |
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| Keywords: | calciner gassolid flow large eddy simulation kinetic theory of granular flow |
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