芜申运河三汊河段航道整治数学模型研究

在对芜申运河三汊河段航道区域水文资料测量与分析的基础上,利用Delft 3D软件建立了三汊河段航道水动力数学模型,针对不同水流条件,对三汊河段航道区域流场进行了计算,分析了整治工程前后流场变化。计算结果表明:青弋江来流量大且垂直于设计航道,对航道通航船舶存在直接威胁;通过数值模型计算和物理模型试验解决了工程方案的比选和优化问题,为航道设计提供更加准确依据。

Numerical simulation of channel regulation at Wuhu-Shanghai Canal Sanchahe passage

After checking and analyzing the hydrologic data on the channel of Sancha reach of Wushen canal,a mathematical model of this channel was established by virtue of the software Delft 3D.The flow field conditions of the channel under different currents were calculated,and then the flow field changes after regulation were analyzed.The flow field changes after four kinds of engineering measures were simulated by the numerical model,and the optimal scheme which was confirmed and optimized by the physical simulation of physical model was proposed.The result shows that Qingyi River directly threatens the passing ships because of its massive current and being perpendicular to the designed channel.The mathematical model calculation and physical model experiment have solved the issue of selecting and optimizing engineering proposals.