【摘要】 用激光测试方法详细地研究了单涡、上洗双涡、下洗双涡对近壁湍流的影响．在涡的下洗区，流体流速高，湍流度低，流体流向壁面；在涡的上洗区，流体流速低，湍流度高，流体远离壁面更多还原

【Abstract】 This paper presents the effect of longitudinal vortices(a single vortex, upwash vortex pair and dowash vortex pair) on turbulent flow near wall region with LDV methods. In downwash region, the fluid with higher streamwise velocity and lower turbulent intensity moves toward the wall; while in the upwash region,the fluid with lower streamwise velocity and higher turbulent intensity moves away from the wall.更多还原