摘要
针对深水波浪传播至珊瑚礁地形上的波浪变形问题，进行规则波入射条件下的二维物理模型试验，将珊瑚礁理想化为两侧坡度1：1的陡坡且中部凹陷的地形，通过对沿程波面的数据观测，探讨波浪在礁坪地形上的传播变形特征，由各测点的波面历时曲线比较分析波浪从深海传播到礁坪地形上波面的变化形态。对各测点的波高和平均水面进行统计分析，得到波高和平均水面的沿程分布规律。结果表明，陡坡珊瑚礁坪对波浪具有很大的衰减作用，在入射波高较大时，受礁坪上水深和陡坡的影响，礁坪上的相对波高可很快降低到深水波高的50％以下。
The wave propagation on reef flat was studied experimentally by two dimensional physical model tests. The coral reef was idealized as a terrain with 1：1 steep slopes at two sides. The wave evaluations were observed and to discuss the features of wave propagation in detail. The distribution of the wave heights and the mean water levels along the coral reef were presented and compared. The variations of the relative wave heights （Hr/H） were described also. It was demonstrated that the relative wave height can be reduced rapidly with the relative distance, and that the wave height on the coral reef is fell to 50% of the incident wave height, while the distance is larger than the wave length of deep water.
出处
《船海工程》
北大核心
2016年第A01期157-163,共7页
Ship & Ocean Engineering
关键词
珊瑚礁
陡坡
波浪
模型试验
coral reef
steep slope
wave
model test
