二维水流数学模型在码头工程防洪影响计算分析中的应用

摘要

采用二维数学模型计算分析了工程前后河道水动力特性和流场的变化。结果表明：码头建成后对涨、落潮流的阻力较小，高潮位壅高值和低潮位抬高值均不超过0．01m，水流流态及水流流速分布无明显变化，对防洪影响不大。%To demonstrate the impact of proposed wharf engineering construction on flood control and river regime ,here, a Two-dimensional mathematical model was built to caculate and analyse the changes of hydrodynamic characristics and flow field of the riverway before and after the constructionof the wharf. The results indicate that the resistance of the wharf to the flood and ebb current is smaller after the completion of the construction. The water level increase of high tide level and the low tidal level is less than 0.01m. The water flow regime and the velocity distribution have no obvious changes, so there is little influence on flood control.