预旋进气转-静盘腔中的流动和传热数值研究

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

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.
- 流动传热 /
- 数值模拟 /
- 旋转盘腔 /
- 预旋
Abstract: 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 CFX5.7 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.
- flow and heat transfer /
- numerical simulation /
- swirl cavity /
- pre-swirl

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[3]	冶萍.有预旋迸气转静盘腔中的流动和换热特性数值研究[J].航空动力学报,2004,19(3):370-374.YE Ping.Numerical investigation of flow and heat transfer performances in pre-swirl rotor-stator cavity[J].Journal of Aerospace Power,2004,19(3):370-374.(in Chinese)

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