叶栅边界层转捩的实验研究与一个新的综合经验准则

EXPERIMENTAL RESEARCH ON TRANSITION PHENOMENON OF A COMPRESSOR CASCADE AND A NEW EMPIRICAL CRITERION FOR TRANSITION MODELING

叶栅边界层转捩的实验研究与一个新的综合经验准则蒋洪德，仲永兴，凌君（中国科学院工程热物理研究所北京１０００８０）（中国航空工业总公司６２４所）关键词转捩实验，经验准则１前言现代航空发动机的风扇、压气机和涡轮叶栅在工作状态下弦长雷诺数一般在１０５～１０...

Bubble transition and natural transition process have been presented figuratively by means of oil stream-visualization technique on an typical compressor cascade at different Mach number and different attack angle.FOllowing some comments on extant empi ncalcriteria for transition modeling,the authors construct a new elaborate one which make use of Abu-Ghannam & Shaw's correlation for transition start point,and of Gostelow &Walker's for transition length.Comparison between calculations and experimental data gives satisfactory results.