变工况条件下汽轮机高压缸末级气动及强度性能研究

石红晖, 王海波, 曹蓉秀, 姚力, 晏鑫

Research on Aerodynamic and Strength Performance of Last Stage in High-Pressure Cylinder of Steam Turbine Under Variable Working Conditions

Honghui SHI, Haibo WANG, Rongxiu CAO, Li YAO, Xin YAN

表4 叶栅网格密度无关性分析

Tab. 4 Independency analysis for grid density of blades

节点数/万	y_wall/mm	$η_{i t}$	$\dot{m}$ /(kg·s^-1)	相对偏差/%
490	0.001	0.902 3	734.87	0.204
710	0.001	0.904 4	734.49	0.152
1 049	0.001	0.904 9	733.95	0.079