摘要
采用三维定常 N-S方程 ,对带有轴向斜槽和圆弧斜槽轮毂处理结构的压气机叶栅通道内湍流流场进行了数值模拟 ,计算中首次采用网格分区的方法 ,解决了因处理槽结构复杂而带来的网格系统难以建立的问题。通过对两种不同形式的处理槽内复杂的流动以及与叶栅通道端部气流相互作用的流场的分析 ,进一步揭示了传统的轴向斜槽处理轮毂和新型的圆弧斜槽处理轮毂的扩稳机理的联系与差别 。
WT5BZ]The three dimensional viscous turbulent Reynolds averaged equations of motion and turbulent models based on RNG method are used to simulate the flow field in a blade row with axial skewed slot hub treatment and a blade row with curve skewed slot hub treatment.The difficulty in grid system establishment due to the complex structure in treatment slots is surmounted by using zonal grids technology.By analyzing the mutual interaction between flows in the hub treatment slots and the endwall flows in blade row,the mechanism of the compressor stability enhancement is revealed both for traditional axial skewed slot hub treatment and novel curve skewed slot hub treatment.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2000年第2期133-136,141,共5页
Journal of Aerospace Power
