本文關(guān)鍵詞： 圓弧型貫底式防波堤 橢圓余弦波 特征函數(shù)展開法 波浪繞射 波浪載荷　出處：《水動(dòng)力學(xué)研究與進(jìn)展(A輯)》2017年03期 　論文類型：期刊論文

【摘要】：該文基于橢圓余弦波繞射理論,應(yīng)用特征函數(shù)展開法,推導(dǎo)了淺水波對(duì)圓弧型貫底式多孔介質(zhì)防波堤繞射的波勢(shì)解,并據(jù)此解析計(jì)算了作用于防波堤的水平波浪載荷與淺水波波面分布。計(jì)算結(jié)果表明:淺水波入射角與非線性影響參數(shù)、海況條件以及防波堤幾何條件等因素的相對(duì)變化對(duì)波浪作用均存在一定的影響,結(jié)構(gòu)透空可以明顯減弱防波堤所受波浪作用。與微幅波理論對(duì)比可知:在一定淺水條件下采用橢圓余弦波一階分量模型所計(jì)算的最大無(wú)量綱波浪力、力矩和波面分布值均明顯高于微幅波理論的對(duì)應(yīng)估值,反映了水波非線性因素的影響效應(yīng)。
[Abstract]:Based on the theory of elliptic cosine wave diffraction and the method of eigenfunction expansion, the wave potential solution of shallow water wave diffraction to circular arc perforated porous medium breakwater is derived in this paper. The horizontal wave load and wave surface distribution of shallow water acting on breakwater are calculated analytically. The results show that the incident angle of shallow water wave and nonlinear influence parameters are obtained. The relative changes of sea conditions and breakwater geometric conditions have a certain effect on the wave action. Compared with the theory of micro-amplitude wave, the maximum dimensionless wave force calculated by using the first order model of elliptic cosine wave under certain shallow water condition can be obviously weakened by structural permeability. The values of moment and wave surface distribution are obviously higher than the corresponding estimates of the theory of micro-amplitude wave, which reflects the effect of nonlinear factors of water wave.
【作者單位】： 中山大學(xué)工學(xué)院應(yīng)用力學(xué)與工程系;
【基金】：廣東省協(xié)同創(chuàng)新與平臺(tái)環(huán)境建設(shè)專項(xiàng)項(xiàng)目(2014B090904066) 廣東省公益研究與能力建設(shè)專項(xiàng)項(xiàng)目(2016A010104006,2015A020216008)~~
【分類號(hào)】：U656.2

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