發(fā)布時(shí)間：2018-04-02 09:38

  本文選題：越浪堤　切入點(diǎn)：光滑堤　出處：《哈爾濱工程大學(xué)學(xué)報(bào)》2017年11期

【摘要】：為了研究不規(guī)則波越過光滑堤后的波周期變化,本文基于近岸波浪傳播變形非靜壓模型分析了相對(duì)淹沒深度、深水波陡、相對(duì)堤頂寬度和坡度對(duì)越浪堤波周期變化的影響。根據(jù)數(shù)值模擬的結(jié)果建立了光滑越浪堤波周期透射系數(shù)的預(yù)測公式。結(jié)果表明:堤后平均波周期受高頻諧波的影響小于入射波周期;堤頂相對(duì)淹沒深度以及深水波陡是波周期透射系數(shù)的主要影響因子,且與其線性相關(guān);相對(duì)堤頂寬度的影響次之,且出水堤時(shí)對(duì)于波周期透射系數(shù)變化的影響大于淹沒堤;斜坡坡度對(duì)波周期透射系數(shù)的影響最不明顯。將預(yù)測公式得到的預(yù)測值與實(shí)測值相比,確定性系數(shù)高達(dá)0.95,表明其良好的預(yù)測效果。
[Abstract]:In order to study the periodic variation of irregular waves over smooth embankments, the effects of relative submerged depth, steep deep water wave, relative top width and slope on the periodic variation of surpassing breakwater are analyzed based on the non-static pressure model of wave propagation deformation in the near shore.Based on the results of numerical simulation, a prediction formula for the periodic transmission coefficient of smooth breakwater is established.The results show that the average wave period behind the breakwater is less affected by the high frequency harmonic wave than the incident wave period, the relative submerged depth of the top of the breakwater and the steepness of the deep water wave are the main influencing factors of the wave period transmission coefficient, and are linearly related to the wave period transmission coefficient.The influence of the relative top width on the wave period transmission coefficient is greater than that of the submerged embankment, and the slope slope has the least effect on the wave period transmission coefficient.Comparing the predicted value with the measured value, the deterministic coefficient is as high as 0.95, which shows that it has good prediction effect.
【作者單位】： 天津城建大學(xué)天津市軟土特性與工程環(huán)境重點(diǎn)實(shí)驗(yàn)室;天津大學(xué)水利工程仿真與安全國家重點(diǎn)實(shí)驗(yàn)室;南京水利科學(xué)研究院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51509177,51609152) 天津市自然科學(xué)基金項(xiàng)目(14JCYBJC22100) 天津市建交委科技計(jì)劃(2013-8)
【分類號(hào)】：TV139.2;U656
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本文編號(hào)：1699794