島礁地形上拍岸浪的數(shù)值模擬研究
發(fā)布時間:2018-05-19 05:49
本文選題:Boussinesq方程 + FUNWAVE模式; 參考:《海洋科學(xué)進(jìn)展》2017年03期
【摘要】:近年來,越來越多的海岸工程與軍事活動在島礁上展開。研究島礁地形上拍岸浪的傳播特征具有重要的指導(dǎo)作用和現(xiàn)實意義。在對波浪破碎的研究中,數(shù)值模擬方法以其經(jīng)濟(jì)可行、操作性強(qiáng)的優(yōu)勢而得到了廣泛的應(yīng)用。本文采用基于完全非線性Boussinesq方程的數(shù)值模型FUNWAVE-TVD模式,對島礁地形上拍岸浪的傳播過程進(jìn)行模擬,并將模擬結(jié)果與實驗室數(shù)據(jù)進(jìn)行對比。在此基礎(chǔ)上,通過修改島礁前坡坡度,分析了不同坡度下波浪的傳播變化特征。結(jié)果表明,FUNWAVE-TVD模式能夠較為準(zhǔn)確地模擬島礁地形上拍岸浪的非線性作用以及破碎現(xiàn)象。波浪破碎位置隨島礁前坡坡度的減小而前移。
[Abstract]:In recent years, more and more coastal engineering and military activities have been carried out on the islands and reefs. It is of great guiding and practical significance to study the characteristics of wave propagation on the island and reef terrain. In the research of wave breaking, numerical simulation method has been widely used because of its advantages of economic feasibility and strong maneuverability. In this paper, the numerical model FUNWAVE-TVD model based on completely nonlinear Boussinesq equation is used to simulate the propagation process of the shore wave on the island and reef terrain, and the simulation results are compared with the laboratory data. On this basis, the characteristics of wave propagation at different slopes are analyzed by modifying the slope of the front slope of the island and reef. The results show that the FUNWAVE-TVD model can accurately simulate the nonlinear action and fragmentation of shore waves on the island and reef topography. The breaking position of the waves moves forward with the decrease of the slope of the front slope of the island and reef.
【作者單位】: 國防科技大學(xué)氣象海洋學(xué)院;河海大學(xué)海洋學(xué)院;
【基金】:國家自然科學(xué)基金項目——引入波浪漫灘邊界的近岸海域懸沙輸運(yùn)數(shù)值模式及其應(yīng)用(41076048) 中央高;究蒲袠I(yè)務(wù)費(fèi)項目——衛(wèi)星遙感海浪反演島礁水深的初步模型及可行性評估(2011B06514)
【分類號】:P731.22;P75
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相關(guān)期刊論文 前2條
1 固山;世界最危險的“拍岸浪”區(qū)[J];科學(xué)大觀園;2004年06期
2 ;[J];;年期
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