強(qiáng)風(fēng)作用下珠江伶仃洋河口灣能量耗散分析
發(fā)布時(shí)間:2018-04-27 19:39
本文選題:珠江河口 + 能量通量 ; 參考:《水利水電科技進(jìn)展》2017年03期
【摘要】:基于珠江河網(wǎng)-河口灣的三維數(shù)值模型,通過(guò)區(qū)域能量耗散項(xiàng)積分方法分析了風(fēng)作用下的伶仃洋河口灣能量耗散。結(jié)果表明,潮能沿深槽向河口與三角洲傳播,風(fēng)的作用改變了伶仃洋河口灣能量通量的振幅和相位,但對(duì)各斷面多潮平均能量通量影響不大;強(qiáng)風(fēng)的作用使伶仃洋河口灣區(qū)域的單位面積能耗增加,垂向渦動(dòng)能耗增強(qiáng)1~2倍,摩擦能耗變幅不大,且不會(huì)改變地貌形態(tài)阻力作用下的能耗空間分布性質(zhì)。
[Abstract]:Based on the three-dimensional numerical model of Pearl River network-estuary, the energy dissipation of Lingdingyang estuary under wind action is analyzed by means of regional energy dissipation integral method. The results show that tidal energy propagates to estuaries and deltas along deep channels, and the effect of wind changes the amplitude and phase of energy flux in Lingdingyang estuary, but has little effect on the average energy fluxes of various sections. The energy consumption per unit area of Lingdingyang Estuary Bay area is increased by strong wind, the energy consumption of vertical vortex is increased by 1 ~ 2 times, the energy consumption of friction is small, and the spatial distribution of energy consumption under the effect of geomorphological resistance is not changed.
【作者單位】: 廣東省水利水電科學(xué)研究院;中國(guó)科學(xué)院南海海洋研究所;
【基金】:廣東水利科技創(chuàng)新項(xiàng)目(2016-12) 廣東省科技計(jì)劃(2010B03080004)
【分類號(hào)】:TV148
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相關(guān)期刊論文 前1條
1 陳偉;河口灣動(dòng)力響應(yīng)特征[J];水動(dòng)力學(xué)研究與進(jìn)展(A輯);1993年S1期
,本文編號(hào):1812046
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