实验流体力学2013，Vol.27Issue(1)：46-51,6.
低负荷弯叶栅流谱结构与气动性能的实验研究
Experimental investigation on flow pattern structures and aerodynamic performance of low-loaded dihedral cascades
摘要
Abstract
Experimental investigations of the dihedral influence on flow pattern structures and aerodynamic performance have been carried out in typical low-loaded rectangular turbine cascades. Detailed measurements using miniature five-hole probe at inlet and outlet and oil flow visualization on the surfaces of six sets of cascades and endwall have been performed. The dihedral influences on flow pattern topology structure, vorticity, yaw and secondary flow loss at outlet were discussed on basis of the qualitative and quantitative analysis. Therefore, the influence rules of dihedral cascades on boundary layer migration and secondary flow loss development in this typical turbine cascades have been proposed.关键词
弯叶片/低负荷/旋涡结构/拓扑/二次流损失Key words
dihedral cascade/ low-loaded/ vortex structure/ topology/ secondary flow loss分类
能源科技引用本文复制引用
张华良,谭春青,陈海生,山本孝正..低负荷弯叶栅流谱结构与气动性能的实验研究[J].实验流体力学,2013,27(1):46-51,6.基金项目
国家自然科学基金(51106155) （51106155）
国家973资助项目(2012CB720406) （2012CB720406）
