中文摘要：

现在的试验性的工作被奉献在一座公寓上为狂暴的边界层调查一个新时空关联模型并且一起浪的墙。在 Re 的狂暴的边界层流动 < 潜水艇 class= “ a-plus-plus ” >= 2 460 被 tomographic 测量解决时间的粒子图象 velocimetry (Tomo-TRPIV ) 。即时 streamwise 变化速度的时空关联在对数的层在 3 个不同墙正常地点被计算。协调结构的规模与远移动离开墙增加，这被发现。当他们上升起来时，规模的生长是在象发卡旋涡或发卡包一样的狂暴的边界层的流行协调结构的生长的表明。时空关联的产生轮廓展出象椭圆形一样形状而非直线。而不是泰勒假设，时空关联的椭圆形的模型为 wallbounded 是有效的，这被建议在一面扁平的墙或一面起浪的墙上的狂暴的流动。椭圆形的 iso 关联曲线有其斜坡被传送对流速度决定的一致比较喜欢的取向。从时空关联导出的传送对流速度代表大规模旋涡在带小规模的旋涡的速度。sweep 速度代表小规模的旋涡的失真并且是亲密地在狂暴的边界层的对数的层与变化速度联系了。nondimensionalized 关联曲线证实椭圆形的模型为接近是更合适的时空关联比泰勒假设，因为后者不能表达有非可以忽略的失真的小规模的运动。在一面起浪的墙上的第二流动也用 TRPIV 被记录。由于联合效果砍层和不利压力坡度，时空关联不在起浪的墙上在一些特定的高度显示出象椭圆形一样形状，但是在起浪的围住墙的流动的外部区域，椭圆形的模型仍然保持有效。

英文摘要：

The present experimental work is devoted to in- vestigate a new space-time correlation model for the turbulent boundary layer over a flat and a wavy walls. A turbulent boundary layer flow at Reo = 2460 is measured by tomographic time-resolved particle image velocimetry （Tomo-TRPIV）. The space-time correlations of instantaneous streamwise fluctuation velocity are calculated at 3 different wall-normal locations in logarithmic layer. It is found that the scales of coherent structure increase with moving far away from the wall. The growth of scales is a manifestation of the growth of prevalent coherent structures in the turbulent boundary layer like hairpin vortex or hairpin packets when they lift up. The resulting contours of the space-time correlation exhibit elliptic-like shapes rather than straight lines. It is suggested that, instead of Taylor hypothesis, the elliptic model of the space-time correlation is valid for the wallbounded turbulent flow over either a flat wall or a wavy wall. The elliptic iso-correlation curves have a uniform preferred orientation whose slope is determined by the convection velocity. The convection velocity derived from the space-time correlation represents the velocity at which the large-scale eddies carry small-scale eddies. The sweep velocity rep- resents the distortions of the small-scale eddies and is intimately associated with the fluctuation velocity in the logarithmic layer of turbulent boundary layers. The nondimensionalized correlation curves confirm that the elliptic model is more proper for approximating the space-time correlation than Taylor hypothesis, because the latter can not embody the small-scale motions which have non-negligible distortions. A second flow over a wavy wall is also recorded using TRPIV. Due to the combined effect of shear layers and the adverse pressure gradient, the space-time correlation does not show an elliptic-like shape at some specific heights over the wavy wall, but in the outer region of the wavy wallbounded flow, the elliptic model remai