Surface water waves over a shallow canopy

Surface water waves over a shallow canopy
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浅树冠上的表面水波

DOI:
10.1017/jfm.2015.110
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发表时间:
2015-03
影响因子:
3.7
通讯作者:
Chiang C. Mei
Chiang C. Mei
中科院分区:
工程技术2区
文献类型:
--
作者:
Benlong Wang;Xiaoyu Guo;Chiang C. Mei

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对水波在植被冠层上的运动进行了理论模拟。为了简化的几何形状,我们研究了一个周期性的垂直圆柱阵列固定在一个缓慢变化的海底。基于植物间的微尺度动力学,预测了波衰减的宏观行为。间隙湍流由雷诺方程模拟,局部恒定涡粘性由能量考虑决定。利用多尺度展开的渐近方法,考虑了波与冠层小尺度运动的耦合,导出了波的慢演化方程。在几个单元格的正则边界值问题的数值解,预测的宏观尺度效应,如波衰减,并与实验室实验进行比较。讨论了不同植被密度下浅水化和耗散的抵消作用。
The dynamics of water waves passing over a vegetation canopy is modelled theoretically. To simplify the geometry, we examine a periodic array of vertical cylinders fixed on a slowly varying seabed. The macroscale behaviour of wave attenuation is predicted based on microscale dynamics between plants. Interstitial turbulence is modelled by Reynolds equations with a locally constant eddy viscosity determined by energy considerations. Using the asymptotic method of multiple-scale expansions, the slow evolution of waves is derived by considering the coupling with the small-scale motion in the canopy. After numerical solution of the canonical boundary-value problem in a few unit cells, predictions of macroscale effects such as wave attenuation are made and compared with laboratory experiments. The counteracting effects of shoaling and dissipation are discussed for different vegetation densities.
浅水中周期性排列的垂直圆柱体的流动和溶质输送
DOI: 10.1017/jfm.2014.484
发表时间: 2014-09
影响因子: 3.7
作者:
Xiaoyu Guo;Benlong Wang;Chiang C. Mei
通讯作者: Chiang C. Mei
DOI: 10.1016/j.coastaleng.2013.01.002
发表时间: 2013-05
影响因子: 4.4
作者:
Tang, Jun;Causon, Derek;Mingham, Clive;Qian, Ling
通讯作者: Qian, Ling
DOI: 10.1061/(asce)0733-950x(1984)110:1(67
发表时间: 1984-01-01
期刊: JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE
影响因子: --
作者:
DALRYMPLE, RA;KIRBY, JT;HWANG, PA
通讯作者: HWANG, PA
DOI: 10.1002/jgrc.20073
发表时间: 2013-03
影响因子: --
作者:
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通讯作者: M. Ghisalberti;Tamara L. Schlosser
DOI: --
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期刊: --
影响因子: --
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通讯作者: T. Hiraishi