长江南京三桥建桥后船舶航行过程数值模拟

Study on the Navigation Process in Yangtze River near the City of Nanjing Due to the Construction of the Nanjing Third Bridge

建立了船舶运动基本方程 ,通过实船静水操纵性能试验比较 ,操纵性指数与实测基本一致。由于南京三桥修建后 ,破坏原来的航线 ,需要规划新的航线。新航线考虑了船舶的习惯航线以及桥墩对原来航线的影响。运用该数模计算新航线的船舶操纵参数的变化 ,结果表明 :上行船队和下行船队的各级流量船舶航行操作参数变化较小 。

The equations of ship motion model are established in this paper. The calculation of the ship manipulative capability parameters is consistent with the real ship experimental results in dead water. Because the old navigation strips are destroyed after construction of the Nanjing Third Bridge, the new navigation strips will be planned. And the factors of old navigation strips and piers will be considered.Using the ship model, the ship manipulative capability parameters in the new navigation strips are calculated. Because the change of the ship manipulative capability parameters in up and down fleet is little body sized, the layout of new navigation strips is reasonable.