Boussinesq方程与抛物型缓坡方程2种波浪模型的比较分析  

The Comparison and Analysis of Two Wave Models of Boussinesq Equation and Parabolic Mild Slope Equation

作　　者：范飞[1] 徐文琦 梁丙臣[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]中交天津港湾工程设计院有限公司,天津300450

出　　处：《中国海洋大学学报（自然科学版）》2014年第2期102-105,111,共5页Periodical of Ocean University of China

基　　金：山东省优秀中青年科学家科研奖励基金项目(BS2011HZ016);国家自然科学基金项目(51179178)资助

摘　　要：波浪破碎的模拟对于波浪模拟的准确性十分重要。为了解波浪破碎模型的问题,本文对抛物型缓坡方程和Boussinesq方程这2种波浪模型所采用的破碎方法进行比较和分析。运用基于Boussinesq方程的Funwave模型和基于抛物型缓坡方程的REF/DIF模型,分别对特拉华大学的未破碎圆形浅滩试验和作者于实验水槽进行的Undertow试验这2个物理模型进行波高模拟、比较与分析。模拟结果表明:Funwave和REF/DIF这2种波浪模型都能准确的模拟出波高随水深的变化情况,但对于波浪破碎后的情况,REF/DIF模型模拟的更为精确一些。Wave breaking is very important to the simulation of the wave climate. For studing the wave breaking model, the parabolic mild slope equation and Boussinesq equation were used in this paper. In addition, shoal experiment （University of Delaware） and undertow test experiment （Ocean University of China） were simulated and compared by using two wave models （Funwave and REF/DIF）, which were based on Boussinesq equations and parabolic mild slope equation. The consequences of simulation show that both Funwave and REF/DIF wave model can simulate the wave condition accurately , but in the condition of wave breaking, REF/DIF model is more precisely.

关 键 词：缓坡方程 BOUSSINESQ方程 涡黏系数 波浪破碎 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]