摘要
采用非结构化四面体网格,对某600MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模拟。针对3种不同结构的模型分别进行了计算,分析研究了阀门内部流场的流动特性,以及在主汽阀内加置挡板和滤网对内部流场和阀门损失的影响。
Unstructured tetrahedral meshes are used to simulate the flow field inside high pressure combined valves of a 600MW ultra supercritical steam turbine under the nominal condition. Three physical modes with different structures are considered. The characteristics of the flow field inside valves are investigated. Effects of a baffle and a filter screen placed in the main steam valve on flow are also discussed in the paper.
出处
《汽轮机技术》
北大核心
2009年第2期107-110,共4页
Turbine Technology
关键词
主汽调节联合阀
流动特性
数值模拟
combined valve
flow characteristics
numerical simulation
