Effects of Adverse Pressure Gradient on the Maximum Values of Reynolds Stresses in a Turbulent Boundary Layer
In this paper, the effects of adverse pressure gradient (APG) on the maximum values of Reynolds stresses are analyzed using the numerical and experimental results in the literature. The Reynolds stresses in a turbulent boundary layer (TBL) with APG are under the combined effects of upstream flow and pressure gradient. Because the effect of upstream flow is inherent in the TBL, we first analyze this effect in TBLs with zero pressure gradient (ZPG) on flat plates. And then the effect of APG is analysed in TBLs with APG on flat plates. The APG accelerates the appearance of the outer peak in (u2)-, instead of being a trigger. Moreover the APG increases the maximum values of (v2)-and-(uv). For the future work, this paper also emphasizes that the effect of the APG should be distinguished from the upstream flow effect.
Turbulent boundary layer Pressure gradient Reynolds stresses
MA Wei Ottavy Xavier LU Li-peng Leboeuf Francis
Laboratoire de Mecanique des Fluides et dAcoustique, Ecole Centrale de Lyon, France School of Jet P Laboratoire de Mecanique des Fluides et dAcoustique, Ecole Centrale de Lyon, France School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing, China
国际会议
4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)
西安
英文
24-27
2012-09-10（万方平台首次上网日期，不代表论文的发表时间）