船用增压锅炉烟气涡轮级叶栅三维湍流流动的数值模拟  

Numerical simulation on three-dimensional turbulent flow in a exhaust gas turbine stage cascade for supercharged marine boiler

作　　者：王为清[1] 周国义[2] 唐积才[1] 

机构地区：[1]海军工程大学研究生院,武汉430033 [2]海军工程大学船舶与动力学院,武汉430033

出　　处：《燃气轮机技术》2009年第4期40-43,72,共5页Gas Turbine Technology

摘　　要：以某船用增压锅炉涡轮增压机组烟气涡轮级为研究对象,采用三维数值模拟技术和"混合平面"方法传递级间参数,利用标准κ-ε双方程湍流模型和耦合隐式求解器,通过求解三维雷诺平均守恒Navier-Stokes方程,来模拟烟气涡轮级叶栅三维湍流流动。文中给出了烟气涡轮级叶栅出口静压、总压、速度以及总温和静温等各参数的变化规律,对于烟气涡轮叶栅气动优化设计具有一定的参考价值。By way of solving a three - dimensional viscous and compressible Reynolds Navier - Stokes equation, a numerical simulation on the three - dimensional turbulent flow was carded out in the exhaust gas turbine Stage Cascade for Supercharged Marine Boiler. The simulation has been aeeomplisbed through the adoption of a full three - dimensional numerical simulation technique and ＂mixed plane＂ method for the transfer of interstage parameters and by using a x - e dual - equation turbulent flow model and Coupled Implicit Solver. A law is presented , which governs the variation of some parameters at the outlet of the turbine stage cascade along the blade height direction , such as static pressure, total pressure , velocity, as well as total temperature and static temperature , etc. The results can provide guidelines for aerodynamic optimization design of the exhaust gas turbine Stage Cascade.

关 键 词：增压锅炉 烟气涡轮 湍流 数值模拟 叶栅 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]