600MW汽轮机高压联合进汽阀内部流场的数值模拟  

NUMERICAL SIMULATION OF THE FLOW FIELD INSIDE HIGH PRESSURE COMBINED VALVE OF A 600MW STEAM TURBINE

作　　者：徐克鹏[1] 蔡虎[2] 崔永强[1] 蒋洪德[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080 [2]北京全三维动力工程有限公司,北京100080

出　　处：《工程热物理学报》2001年第5期555-558,共4页Journal of Engineering Thermophysics

基　　金：国家技术创新项目资助(No.G1999022309)

摘　　要：本文采用非结构网格对某６００ ＭＷ汽轮机高压联合进汽阀不同阀门升程下内部复杂流场进行了数值模拟，详细分析了其流场结构．数值计算结果与模型实验进行了对比，并对实验中的一些现象给出了合理的解释。Unstructured algorithm is employed in this paper to simulate the complex flow field inside high pressure combined valve of a 600MW steam turbine. Different stem lifts are considered and the flow structures are discussed in detail. Numerical calculations are compared with model experimental results. Some explanations of the special phenomena observed in experiments are presented.

关 键 词：蒸汽轮机 高压联合进汽阀 数值模拟 内部流场 

分 类 号：TK263.5[动力工程及工程热物理—动力机械及工程]