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Experimental Model of Wave Reflection and Transmission by Double Floating Plate

机译：双浮标波反射和传动试验模型

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The outer edge of the sea ice cover, also known as marginal ice zone (MIZ), is the area where the interactions between ocean waves and sea ice take place. Ocean waves penetrate deep into the ice-covered ocean and impact the ice cover. Concomitantly, the ice cover attenuates the wave energy over distance, so that wave impacts die out eventually. The most heralded effect is the ability of waves to break up the ice cover into floes with diameters ranging from tens to hundreds of meters, with ice concentration at its maximum in the inner part MIZ, and minimum at the outer edges. Following the breakup, waves herd floes, introduce warm water and overwash the floes, thus accelerating ice melt, and cause the floes to collide. Collisions erode the floes and influence the large-scale deformation of the ice field via momentum transfer. Waves, therefore, have a substantial role in controlling the ice extent. Existing wave-ice models are based on traditional thin-plate theory. This is a linear energy-conserving approach that describe a simplify process based on one single floe of arbitrary length, which is known to underestimate wave attenuation during most energetic wave conditions. Here we report experimental tests to discuss the complexity of the of wave-ice interactions. Single and double thin plastic plate configurations were tested under the action of incident regular waves with varying amplitudes and periods. Particular attention was given to nonlinear effects responsible for wave dissipation. Results show that a double plate configuration is more effective in attenuating wave energy than a single floe, regardless side effects that may occur due to nonlinear fluid motion overwashing the plates.
机译：海冰盖的外缘，也称为边缘冰区（Miz），是海浪和海冰之间相互作用的地区。海浪深入进入冰覆盖的海洋并影响冰盖。同时，冰盖衰减波能在距离上，因此波浪影响最终消失。最高的效果是波浪将冰盖分成冰盖的能力，直径从数十到数百米的直径，在内部部件Miz中最大的冰浓度，以及在外边缘处的最小值。在分手之后，挥动牛群，引入温水并射击剥落，从而加速冰融化，并导致絮凝碰撞。碰撞侵蚀絮凝物，并通过动量转移影响冰场的大规模变形。因此，波浪在控制冰范围方面具有重要作用。现有的波冰模型基于传统的薄板理论。这是一种线性节能方法，其描述了基于一个任意长度的单个剥落的简化过程，该方法是已知在大多数能量波条件期间低估波衰减。在这里，我们报告了实验测试，讨论了波浪冰相互作用的复杂性。在具有变化幅度和时期的入射常规波的作用下测试单薄薄塑料板配置。特别注意负责波浪耗散的非线性效应。结果表明，双板构造在比单个剥离中的衰减波能更有效，无论如何由于非线性流体运动而覆盖板可能发生的副作用。

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