Dye Diffusion Experiment in a Longshore Current Field
Dye Diffusion Experiment in a Longshore Current Field
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沿岸流场中的染料扩散实验
DOI：
10.1142/s0578563403000841
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发表时间：
2003
影响因子：
2.4
通讯作者：
Takashi Nakamura
中科院分区：
文献类型：
--
作者：
S. Takewaka;Shoichiro Misaki;Takashi Nakamura
在沿海地区进行了瞬时染料释放试验。染料从位于日本Hasaki的HORS研究码头释放到沿岸流场。染料的释放点被放置在一个波浪转化区，这个区域位于沙洲之间，在那里发生有限的破裂，而海岸最终的冲浪区，在那里所有的波浪都破裂了。在沙洲和海岸线之间存在岸流。用系泊视频系统对染色片的变形进行了高效的观察。通过对染料斑分布时间变化的视频图像分析，解释了激波带流体力学和剪切流动弥散的一些基本特征。
An instantaneous dye-release experiment was conducted in a coastal field study. Dye was released into a longshore current field from the research pier HORS located in Hasaki, Japan. The release point of the dye was placed in a wave reforming zone which lay between a bar, where limited breaking occurred, and shorewards final surf zone, where all waves broke. Longshore current was present between the bar and shoreline. Deformation of the dye patch was observed efficiently and effectively with a moored video system. Some essential characteristics of the surf zone hydrodynamics and shear flow dispersion are explained from the results of video image analyses of the temporal variation of the dye patch distribution.