气-液-固三相搅拌槽反应器模型及模拟研究进展  

Progress on Modeling and Numerical Simulation of Gas-Liquid-Solid Stirred Reactors

作　　者：李向阳[1] 杨士芳[1] 冯鑫[1] 王正[2] 杨超[1] 毛在砂[1] 

机构地区：[1]中国科学院过程工程研究所中国科学院绿色过程与工程重点实验室,北京100190 [2]中国石化安全工程研究院化学品控制国家重点实验室,山东青岛266071

出　　处：《化学反应工程与工艺》2014年第3期238-246,共9页Chemical Reaction Engineering and Technology

基　　金：国家自然科学基金(21276004);国家重点基础研究发展规划(973计划)(2010CB630904);国家高技术研究发展计划(863计划)(2011AA060704);国家杰出青年基金(21025627);化学品安全控制国家重点实验室开放课题(SKL-017)

摘　　要：综述了气-液-固三相搅拌槽反应器模型和模拟的研究进展。讨论了可用于气-液-固三相流的模拟方法,三相流模型适合于气-液-固三相搅拌槽反应器的数值模拟。给出了气-液-固三相搅拌槽反应器数值模拟的研究进展,目前研究中还缺乏基于机理的相间作用力模型,常用的湍流模型不能描述搅拌槽内的各向异性,没有局部性质的实验数据导致气-液-固三相搅拌槽反应器的模型和模拟无法得到充分验证。建议在今后的研究中构建"两尺度"气-液-固三相湍流单元胞模型,扩展两流体显式代数应力模型为三流体模型,开发局部照相探针技术及相应的图像处理软件。The progress in mathematical modeling and numerical simulation of gas-liquid-solid stirred reactors was reviewed. Firstly, simulation methods for gas-liquid-solid three-phase flow were discussed and the three-fluid model was suggested as the most suitable one for simulating of three-phase stirred tanks. The progress in modeling of gas-liquid-solid stirred tanks was focused on the deficiencies of current researches：（1） The interphase forces models are not based on the physical mechanisms of interphase interactions;（2） The turbulence models can not describe the anisotropic nature in the stirred tank, and （3） No experimental data on local characteristics are available for model verification. Building ＂two-scale＂gas-liquid-solid three-phase turbulence unit-cell model, extending the two-fluid explicit algebraic stress model to three-fluid model, and developing local camera probe and image processing software were suggested for future research to deal with the above problems, respectively.

关 键 词：气液固三相 搅拌槽 数值模拟 三流体模型 湍流模型 局部相含率 

分 类 号：TQ027[化学工程] TQ019