预旋进气转-静盘腔中的流动和传热数值研究  

Flow and heat transfer investigation in pre-swirl inflow rotor-stator cavity

作　　者：曾军[1] 张剑[1] 黄康才[1] 

机构地区：[1]中国燃气涡轮研究院,成都610500

出　　处：《航空动力学报》2008年第7期1168-1173,共6页Journal of Aerospace Power

摘　　要：采用计算流体动力学(CFD)软件CFX5.7对预旋进气旋转盘腔中的流动和传热过程进行了全三维数值模拟.对4种工况进行了计算,计算结果与试验结果吻合较好,验证了所采用方法的计算精度,并分析了旋转雷诺数、无量纲切向速度、预旋比对流场结构、传热的影响.In order to investigate the flow and heat transfer in a pre-swirl rotor-stator cavity with two air inflows （central air flow and pre-swirl inflow at stator rim respectively） and two outflows （radial outflow at outer shroud and axial outflow at rotor rim respectively）, a numerical study was conducted by using computational fluid dyrramics （CFD） software CFXS. 7 with shear stress transport （SST） turbulence model. The computational results agree well with the test results. The results show that, rotating Reynolds number, non dimensional flow velocities and pre-swirl ratio have different effects on the flow structure and heat transfer characteristics in the rotor-stator cavity by computing four different conditions.

关 键 词：流动传热 数值模拟 旋转盘腔 预旋 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]