Particle tracking velocimetry beneath water waves. Part II: Water waves
Particle tracking velocimetry beneath water waves. Part II: Water waves
复制标题
水波下的粒子跟踪测速。
DOI：
10.1007/s003480050145
复制
发表时间：
1998
影响因子：
2.4
通讯作者：
B. Jähne
中科院分区：
文献类型：
--
作者：
F. Hering;C. Leue;D. Wierzimok;B. Jähne
本文第一部分（Hering等，1997）中描述的粒子跟踪技术被用于研究机械产生的流场和风诱导的流场。实验在三个不同的风/波设施（海德堡，德尔夫特和圣地亚哥）。粒子跟踪允许广泛的研究漂移速度，波浪轨道运动和湍流雷诺应力下的水波。Monte Carlo模拟表明，拉格朗日测量可以很容易地避免运动水面对流动平均特性计算的影响。由于微尺度的波浪破碎摩擦速度剖面显示出显着增加的湍流向界面。
Particle Tracking techniques described earlier in the first part of this paper (Hering et al. 1997) were used to study the flow field beneath mechanically generated and wind induced flow fields. Experiments were conducted at three different wind/wave facilities (Heidelberg, Delft and San Diego). Particle Tracking allows an extensive study of drift velocities, wave orbital motion and turbulent Reynolds Stress beneath water waves. Monte Carlo simulations show, that the effects of the moving water surface on the calculation of mean properties of a flow can easily be avoided by Lagrangian measurements. Due to micro-scale wave breaking friction velocity profiles show a significant increase of turbulence towards the interface.