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二维鼓泡床内气泡尺寸分布的实验与CFD模拟
引用本文:宋庆唐,金家琪,吴桂英,卢建军,张锴. 二维鼓泡床内气泡尺寸分布的实验与CFD模拟[J]. 化工学报, 2008, 59(2): 335-340
作者姓名:宋庆唐  金家琪  吴桂英  卢建军  张锴
作者单位:中国石油大学(北京)重质油国家重点实验室,北京,102249;上海惠生化工工程有限公司北京设计中心,北京,100102;中国石油大学(北京)重质油国家重点实验室,北京,102249;太原理工大学煤科学与技术教育部和山西省重点实验室,山西,太原,030024
基金项目:国家重点基础研究发展计划项目(2005CB221205),国家自然科学基金项目(20676147)~~
摘    要:在有机玻璃制成的二维鼓泡床(0.20m×0.02m×2.00m)内,采用摄像法对空气-自来水的气液两相体系的气泡尺寸分布进行了考察。以商业计算流体力学软件ANSYS CFX 10.0为平台,在双流体模型的基础上,采用k-ε湍流模型和GRACE曳力模型对气液鼓泡床内流体动力学行为进行了多相流CFD数值模拟。结果表明 MUSIG(Multiple Size Group)模型实现了对多气泡体系内气泡尺寸分布特性的考察,气泡尺寸分布的模拟结果与实验结果吻合得较好,从而说明了考虑了气泡聚并破碎的MUSIG模型能很好地反映出鼓泡床内气泡尺寸分布特性。

关 键 词:鼓泡床  气泡尺寸分布  CFD模拟
文章编号:0438-1157(2008)02-0335-06
收稿时间:2007-08-06
修稿时间:2007-10-09

Experiment and CFD simulation of bubble size distribution in 2D gas-liquid bubble column
SONG Qingtang,JIN Jiaqi,WU Guiying,LU Jianjun,ZHANG Kai. Experiment and CFD simulation of bubble size distribution in 2D gas-liquid bubble column[J]. Journal of Chemical Industry and Engineering(China), 2008, 59(2): 335-340
Authors:SONG Qingtang  JIN Jiaqi  WU Guiying  LU Jianjun  ZHANG Kai
Abstract:Bubble behavior was observed by using high-speed digital camera in a two-dimensional rectangular bubble column of 0.20 m(width)× 0.02 m(thickness)× 2.00 m(height).Air and water were used as gas and liquid phases,respectively.Hydrodynamic simulation was conducted in the platform of commercial software package,ANSYS CFX 10.0,by combining the classical two-fluid model of turbulence and GRACE drag model.The computational distributions of bubble size from the MUSIG(multiple size group)model considering bubbles breakup and coalescence were in good agreement with experimental data,which showed that this model could be used to predict the bubble size distribution in the gas-liquid bubble column.
Keywords:bubble column  bubble size distribution  CFD simulation
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