Interaction of wave with multiple wide polynyas
Interaction of wave with multiple wide polynyas
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波浪与多个宽冰间湖的相互作用
DOI：
10.1063/1.5098877
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发表时间：
2019
影响因子：
4.6
通讯作者：
Wu G. X.
中科院分区：
文献类型：
--
作者：
Shi Y. Y.;Li Z. F.;Wu G. X.
将一种基于宽间距近似的方法应用于多个多面体中的波浪散射问题。将冰盖模拟为弹性板，流体流动用速度势理论描述。求解过程是基于冰盖长度远大于波长的假设构建的。对于每一面都有冰盖的自由表面，问题在线性化速度势理论的框架内得到了精确的求解。然后在两侧冰盖下方的交界处将其与邻近波尼亚的溶液进行匹配，匹配中只包括行波。数值结果表明，该方法具有较高的精度和计算效率。然后进行了广泛的模拟，以研究冰盖数量、冰盖长度、冰盖分布以及冰盖宽度的影响。分析了波的反射和传输特性，探讨了波的物理机制。由AIP出版公司授权出版。Https://doi.org/10.1063/1.5098877
A method based on the wide spacing approximation is applied to the wave scattering problem in multiple polynyas. An ice sheet is modeled as an elastic plate, and fluid flow is described by the velocity potential theory. The solution procedure is constructed based on the assumption that the ice sheet length is much larger than the wavelength. For each polynya, of free surface with an ice sheet on each side, the problem is solved exactly within the framework of the linearized velocity potential theory. This is then matched with the solution from neighboring polynyas at their interfaces below the ice sheet on each side, and only the traveling waves are included in the matching. Numerical results are provided to show that the method is very accurate and highly efficient. Extensive simulations are then carried out to investigate the effects of the ice sheet number, ice sheet length, distribution of ice sheets, as well as polynya width. The features of wave reflection and transmission are analyzed, and the physical mechanism is discussed. Published under license by AIP Publishing. https://doi.org/10.1063/1.5098877
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