湍动发生器内流场数值模拟及结构优化分析  

NUMERICAL SIMULATION AND OPTIMAL STRUCTURE ANALYSE FOR THE INNER FLOW OF THE TURBULENCE GENERATOR

作　　者：王乐勤[1] 杜红霞[1] 杨旭[2] 杨健[1] 

机构地区：[1]浙江大学化工机械研究所,浙江杭州310027 [2]中国轻工业杭州机电设计研究院,浙江杭州310004

出　　处：《工程热物理学报》2008年第3期415-418,共4页Journal of Engineering Thermophysics

基　　金：国家科技部专项资金资助项目(No．2004EG111014);浙江省科技厅重点科研工业项目(No．2005C21069)

摘　　要：对流浆箱内整流元件—湍动发生器进行了基于二相流动的数值模拟.主要是针对阶扩型和渐扩型两种湍动发生器结构形式,通过改变入口流速和湍动发生器结构参数进行了多种情况下的数值模拟计算.探讨了这些因素对湍动发生器的湍动发生性能影响,其结果对湍动发生器的结构优化具有较好的指导意义.Based on the principle of turbulence generation, the turbulent characteristic and parameters of the paper pulp flow inside turbulence generators were investigated. Considering the turbulence intensity and scale as parameters of the cost function, the computer fluid dynamics-based optimal method for the structure design of turbulence generators was proposed and applied in the design of two classical structure types. The numerical method and the conclusion are applicable and useful for the new design of turbulence generators.

关 键 词：流浆箱 湍动发生器 数值模拟 结构优化 

分 类 号：TK734.2[交通运输工程—轮机工程]