浮式防波堤实验研究.pdf

浮式防波堤的实验研究

摘要

浮式防波堤是应用在没有必要修建坐底防波堤及所掩护的水域
要求有良好的水质交换条件等情况下一种较优的结构型式,它在港口
工程和养殖业等领域有非常多的用途。
本文通过在波浪水槽中进行的实验,研究了固定不动的二维浮式
防波堤的消波特性以及其表面压强的变化特征及分布情况。根据本论
文实验研究目标以及试验设备和测试手段的特点,自行设计了与波浪
水槽同宽的方箱形浮式防波堤,并且运用浪高仪和压力传感器采集波
面变化数据以及表面压强数据。
在理论上对水面固定方箱的透射系数给出线性解析解,再对于浪
高仪采集的波面数据汇总研究,得出浮式防波堤的透射系数随不同工
况的变化,并以此对比理论解析解,得到了透射系数随周期和吃水深
度变化的特性。另外一方面,对于压力传感器采集的压强数据汇总研
究,得出浮式防波堤的表面压强的变化特征及分布状况,并且得到了
浮式防波堤表面最大动压强与绝对压强的位置。

关键词: 浮式防波堤,波浪水槽实验


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EXPERIMENTAL RESEARCH OF FLOATING
BREAKWATER


ABSTRACT

Floating breakwater is a useful structure which can be applied when building a
standing breakwater is unnecessary, or in water area requiring good water exchanging
quality. It is widely used in coastal engineering and aquatic breeding, etc.
Through the experiment conducted in a wave flume, this article studies the wave
dissipation characteristic and surface pressure distribution of a fixed two-dimensional
floating breakwater. According to the research target of this experiment with the
experimental equipment and testing method, a square-box floating breakwater is
designed, which has the same width as the wave flume. Also, the wave profile data
and surface pressure data are acquired by wave gauges and pressure sensors
separately.
The analytical solution of the transmission coefficient can be solved. According
to the investigation of the wave profile data acquired by wave gauges, variation of
transmission coefficient with different parameters is studied here. paring with
the analytical solution, the variation of the transmission coefficient with cycle and
draft is procured. On the other hand, according to the surface pressure data acquired
by pressure sensors, the variation characteristic and pressure distribution of the
surface pressure is studied. Also, the position of biggest ic pressure and absolute
pressure is revealed.

KEY WORDS: Floating breakwater, wave flume experiment

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目录

第一章引言………………