The Oscillating Water Column Wave-energy Device

The Oscillating Water Column Wave-energy Device
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DOI:
10.1093/imamat/22.4.423
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发表时间:
1978-12
影响因子:
1.2
通讯作者:
D. Evans
D. Evans
中科院分区:
数学4区
文献类型:
--
作者:
D. Evans

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本文给出了一个与弹簧阻尼器系统相连的浮体对波浪能量吸收效率的表达式。弹簧阻尼器系统位于由两个平行板或一个浸没在波浪中的窄管围成的流体柱的顶部。该方法广泛地利用了纽曼(1974)在不存在浮簧阻尼系统时对相应问题的匹配渐近展开式的近似解。它示出,对于相等长度的板的最大可能的效率是50%,并且对于三维的情况下,它在理论上是可能的,以捕获能量的波峰长度大于管直径的波。
An expression is obtained for the efficiency of wave-energy absorption of a float connected to a spring-dashpot system on the top of a column of fluid bounded by two closely-spaced vertical parallel plates or a narrow tube immersed under waves. The method makes extensive use of the approximate solution using matched asymptotic expansions obtained by Newman (1974) to the corresponding problem when the float-spring-dashpot system was absent. It is shown that for plates of equal length the maximum possible efficiency is 50%, and that for the three-dimensional case it is theoretically possible to capture the energy in a wave whose crest length is greater than the tube diameter.