Turbulence. Perspectives on flow and sediment transport
Turbulence. Perspectives on flow and sediment transport
复制标题
湍流。
DOI：
10.1016/0169-5983(94)90030-2
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发表时间：
1994
影响因子：
1.5
通讯作者：
S. Ikeda
中科院分区：
文献类型：
--
作者：
S. Ikeda
正文的第一部分描述了使用经典设备如热膜探头、电磁流速计、激光测速仪和超声波传感器监测湍流的技术。由于在沙波上产生的湍流通常显示出有组织的结构，因此希望应用其他现代技术，如与相关方法相结合的粒子图像测速技术（PIV）来获得瞬时三维速度场。例如，如果将应用可视化系统（AVS）与上述PIV方法结合使用，则书中所示的发夹形涡流可以更逼真地可视化。书中介绍了现有泥沙输移经典教科书中没有介绍的声学和电磁探测系统。该系统似乎很有希望观察泥沙质量通量的波动与流动湍流。
The first part of the text describes the techniques for monitoring turbulent flow using classical devices such as hot-film probes, electromagnetic current meters, laser velocimetry and ultrasonic sensors. Since the turbulence generated on sand waves usually shows organized structures, it is desirable to apply other modern techniques such as the particle image velocimetry (PIV) associated with correlation methods to obtain instantaneous three-dimensional velocity fields. For example, the hairpin vortices illustrated in the book may be visualized more realistically, if an application visualization system (AVS) is used in tandem with the above-mentioned PIV method. Acoustic and electromagnetic detection systems for the measurement of sediment transport are illustrated in the book which have not been described in the existing classical textbooks on sediment transport. The systems seem promising for observing the fluctuation of sediment mass flux associated with flow turbulence.