近岸不规则波传播模拟中谱分割方法初探
he Spectrum Division Method of Irregular Multi-Directional Wave Transformation Model in the Nearshore Region
本文根据近岸水流水域中波浪折射绕射传播模型,采用JONSWAP谱( =3.3)与 ,m=2的 方向分布函数,探讨频率分割数、方向分割数与计算精度之间的关系,模拟结果表明当频率分割16等份及方向分割7份时,已能满足要求。如果再增加等份数只会带来计算工作量的成倍增加而并非提高精度。
ccording to the inshore waters flow in waves diffracted refraction spread model. The JONSWAP spectrum was used to simulate irregular waves, and directional spreading function of ,m=2的 was used in the paper. This paper discussion on the number of frequency division and the direction of division .The results showed that when the number of frequency division is 16 and 7 direction of segmentation, we have to meet the requirements. If we increase the division number, we will only bring about the exponential increase in computing workload rather than improving accuracy.
陶美红
水利工程基础科学海洋学
波浪变形,折射绕射,波能谱
wave deformation refraction-diffraction the wave spectrum
陶美红.近岸不规则波传播模拟中谱分割方法初探[EB/OL].(2008-06-06)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/200806-117.点此复制
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