黄骅港外航道整治工程后沿堤流分析

Analysis of the current along breakwater after regulation of the breakwater in Huanghua Port

黄骅港整治工程后沿堤流的发展对评价该工程的合理性及指导下一步整治工作至关重要。依据黄骅港现场实测资料,遥感卫片和二、三维水动力数值模拟等结果,阐述黄骅港外航道延堤工程后沿堤流的发展。结果表明:在北偏西风作用下黄骅港防波堤外侧落潮期出现较大沿堤向外水流,其它条件下沿堤流发展不明显;沿堤流不是造成黄骅港外航道淤积的主要原因,黄骅港整治工程后影响航道回淤的决定性因素仍是波浪。

The development on currents along breakwater after the breakwater is extended in Huanghua Port is very significant for evaluating the project＇ s rationality and directing the follow-up regulation works. Based on the real-measured field data, remote sensing pictures, two-dimensional ＆ three-dimensional numerical simulations of water power, the development on currents along breakwater after the breakwater is extended in Huanghua Port is elaborated. The result shows that, under northwest wind, heavy outward current appears outside the breakwater during the ebb tide. The development of currents along breakwater is unobvious under other conditions. After the breakwater is extended, the current along breakwater is not the main reason for outer channel＇ s siltation, and the wave is still the main reason affecting channel＇ s siltation.