摘要
The effects of adverse pressure gradient(APG)on Reynolds stresses in turbulent boundary layers(TBLs)with APG were analyzed.The difficulty of this work was attributable to the Reynolds stresses in TBLs with APG under two combined effects,i.e.:effect of upstream flow and effect of APG.The effect of upstream flow is an inherent effect no matter pressure gradient exists or not.The individual effect was analyzed from absolute developments of Reynolds stresses in TBLs with zero pressure gradient(ZPG)firstly.Effect of APG was then analyzed from absolute developments of Reynolds stresses in TBLs with APG.Result showed that,for absolute development of mean streamwise Reynolds stresses,APG accelerated its development in TBL with ZPG;for absolute development of mean normal or shear Reynolds stresses,APG increased their magnitude in the outer part,and decreased their extent of large value region.
The effects of adverse pressure gradient （APG） on Reynolds stresses in turbulent boundary lay ers （TBLs） with APG were analyzed. The difficulty of this work was attributable to the Reynolds stresses in TBLs with APG under two combined effects, i. e. ： effect of upstream flow and effect of APG. The effect of upstream flow is an inherent effect no matter pressure gradient exists or not. The individual effect was analyzed from absolute developments of Reynolds stresses in TBLs with zero pressure gradient （ZPG） firstly. Effect of APG was then analyzed from absolute developments of Reynolds stresses in TBLs with APG. Result showed that, for absolute development of mean streamwise Reynolds stresses, APG accelerated its develop- ment in TBL with ZPG; for absolute development of mean normal or shear Reynolds stresses, APG increased their magnitude in the outer part, and decreased their extent of large value region.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2017年第2期463-469,共7页
Journal of Aerospace Power
基金
Natural Science Foundation of Shanghai(15ZR1422500)
Initiative Projects of Shanghai Jiao Tong University Young Teachers(AF4130024)
