【摘要】：河流輸沙、水深地形演變、大型海洋工程的建設(shè)均會對海洋水動力產(chǎn)生明顯影響。本文基于MIKE21數(shù)值模型,對不同時(shí)期水深岸線條件下萊州灣西南側(cè)海域的水動力演變特征及濰坊港建設(shè)對水動力的影響進(jìn)行研究。結(jié)果表明,1984~2007年,黃河現(xiàn)行河口東南側(cè)高流速區(qū)位置向SE向移動,萊州灣灣口及西南側(cè)海域流速增大,增大幅度在10 cm/s左右。濰坊港10 km引堤工程的建設(shè)導(dǎo)致引堤端頭處流速增大10~20 cm/s,引堤兩側(cè)流速減小15~20 cm/s,流向偏轉(zhuǎn)量在10°~40°;濰坊港擴(kuò)建工程的建設(shè)導(dǎo)致防波堤端頭處流速增大5~20 cm/s,兩側(cè)海域流速減小5~20 cm/s,流向偏轉(zhuǎn)5°~20°。黃河口沙嘴的形成對其南側(cè)海域形成有效掩護(hù),而濰坊港工程的建設(shè)對其兩側(cè)海域起到一定的掩護(hù)作用,導(dǎo)致該海域有效波高顯著減小,水動力強(qiáng)度減弱。
[Abstract]:The river sediment transport, the evolution of water depth topography and the construction of large-scale marine engineering will have obvious influence on the marine hydrodynamic force. Based on MIKE21 numerical model, the hydrodynamic evolution characteristics of the southwest side of Laizhou Bay in different periods and the influence of Weifang port construction on hydrodynamic force are studied in this paper. The results show that from 1984 to 2007, the position of the high velocity area on the southeast side of the current estuary of the Yellow River moves towards SE, and the velocity in the mouth of Laizhou Bay and the southwest side increases by about 10 cm/s. The construction of Weifang Port 10 km diversion project leads to the increase of the velocity at the end of the embankment by 10 鈮，

本文編號：2512487