Abstract The nearshore wave action at many barrier reefs or reef atolls can generate wave setup and drive a 2DH reef-lagoon-channel circulation. Previous laboratory studies on such reef-lagoon-channel system focused mainly on the 1DH wave-flume experiments without considering the alongshore wave dynamics. To better understand the wave-induced setup and wave-driven current in a reef-lagoon-channel system, a series of laboratory experiments are conducted in a wave basin based on an idealized physical model subject to both regular and irregular waves. Both the cross-shore and alongshore variations of wave setup and mean current are analyzed, and the influences of incident wave height, wave period and reef-flat water level on these wave processes are examined. A dimensionless analysis of both wave setup and mean current on the reef flat is conducted and the results are compared with other published laboratory data. A quasi-2DH analytical model is improved by incorporating the alongshore wave dynamics in the lagoon to reproduce the present experimental observation. The dominant circulation pattern in the system is identified with the analytical model.

中文翻译：

---

2DH礁-泻湖-通道系统中波浪诱导设置和波浪驱动电流的实验室研究

摘要 许多堡礁或礁环​​礁的近岸波浪作用可以产生波浪设置并驱动二维礁-泻湖-通道环流。以前对这种礁-泻湖-通道系统的实验室研究主要集中在 1DH 波浪-水槽实验上，而没有考虑沿岸波浪动力学。为了更好地了解礁-泻湖-通道系统中的波浪诱导设置和波浪驱动电流，基于理想化的物理模型，在受规则和不规则波浪影响的波浪盆地中进行了一系列实验室实验。分析了波浪设置和平均流的跨岸和沿岸变化，并研究了入射波高、波浪周期和礁滩水位对这些波浪过程的影响。对礁滩上的波浪设置和平均电流进行了无量纲分析，并将结果与​​其他已发表的实验室数据进行了比较。通过在泻湖中结合沿岸波动力学来重现当前的实验观察，改进了准 2DH 分析模型。系统中的主要循环模式由分析模型确定。