300MW燃料组件定位格架导向翼三维流场分析  

3-D flow field analysis of the guide vanes for 300 MW fuel assembly spacer grid

作　　者：周勤[1] 丁捷[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核技术》2010年第2期120-123,共4页Nuclear Techniques

摘　　要：从三维流场分析角度验证了300MW燃料组件定位格架导向翼初步设计改进方案的合理性,采用流体计算软件对燃料组件定位格架或棒束定位格架进行计算,比较导向翼修改前后的定位格架水力特性和导向翼周围流场的变化,为实际工程应用提供了依据。In this work, 3-D flow field analysis for fuel assembly spacer grids or spacer grids with fuel rods were carried out using hydromechanics software. For the spacer grids before and after modification, the calculated hydraulic properties and changes in flow field near the guide vanes were compared. The results show that the rationality of primary modification method for 300 MW fuel assemblies can be validated.

关 键 词：三维流场分析 燃料组件 定位格架 棒束定位格架 水力特性 

分 类 号：TL352[核科学技术—核技术及应用]