Most artificial river wave technologies require a drop in the riverbed to generate recreational surf waves; herein a new technology is introduced that can be used on a flat bed. The mechanism includes an adjustable ramp, transition and kicker, which can be independently manipulated to generate a surf wave. A 3-D numerical model of the described mechanism is developed based on a prototype Kananaskis River wave in Alberta, Canada, and is calibrated by means of physical model data. Numerical experiments are conducted to demonstrate sensitivity of the wave to geometric features of each element of the structure in different hydraulic conditions such as flowrate and tailwater depth. Results are presented in dimensionless form to be generalizable and describe the wave behavior. It is shown that the ramp slope, the heaviest and most expensive element of the structure, has a minimal effect on the wave profile, while the tailwater depth, kicker geometry and kicker position can significantly augment and accelerate the wave.

中文翻译：

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缺乏河道降落时可调河浪的敏感性分析

大多数人工河浪技术都需要在河床上滴水才能产生娱乐性的海浪。本文介绍了一种可以在平板床上使用的新技术。该机构包括一个可调节的斜坡，过渡装置和踢腿，可以独立操纵它们以产生冲浪波。基于加拿大艾伯塔省的卡纳纳斯基斯河波原型开发了所描述机制的3-D数值模型，并通过物理模型数据进行了校准。进行了数值实验，以证明在不同的水力条件（例如流量和尾水深度）下，波浪对结构每个元素的几何特征的敏感性。结果以无量纲形式呈现，可以泛化并描述波浪行为。如图所示，坡度