多层变孔径倾斜孔板式消波装置的试验研究

An experimental study of the variable-diameter tilted perforated plate type wave dissipation device

为了缩短波浪水槽内进行试验的"等水"时间,同时为实验室内波浪水槽中进行的相关实验研究提供更为接近实际的工作环境,提出了一种新型的变孔径倾斜孔板式消波装置,并对该装置的消波性能进行了系统的研究。通过物理模型试验,对该装置在不同波长、波高、水深条件下,孔板倾角、间距对反射、透射和消波系数的影响进行了较为系统的研究分析。另外,还对该装置在实际工作环境中的消波效果进行了探讨。研究结果表明:试验范围内,孔板倾角越小,消波性能越好;相对消波区域长度相近时,板间距适当减小有助于提高消波性能;该装置能极好地应用于实际消波工作。

In order to shorten the time of ＂ waiting water＂ in the progress of experiment in wave flume,and to provide the working condition that is closer to actual situation for those experiments,this article provides a new variable-diameter tilted perforated plate type wave dissipation device,and makes a systematic study on the wave dissipation ability of the device. Through physical model experiment,the change regularity of reflection,transmission and dissipation coefficients caused by different angles and spacing of perforated plates are studied in different conditions of wave-length,wave-height and water-depth. In addition,the wave dissipation effect of the device performed in the real work is researched. It is proven that in the experimental range,the smaller the tilt angle for all perforated plates,the better the property of wave dissipation; when the lengths of relative wave dissipation areas are similar,decreasing the spacing of perforated plates properly is helpful to improve the properties of wave dissipation; the device can be used in the real work for wave dissipation wonderfully.