不同开度时弧形闸门流固耦合数值模拟

FSI Numerical Simulation of Radial Gate at Different Opening Degrees

为研究弧形闸门局部开启时受力情况,采用单向流固耦合的方法,结合Realizable k-ε湍流模型和VOF方法,利用ANSYS、Fluent软件建立了水流流场和闸门三维模型,对不同开度下闸门受力情况进行数值模拟,获得了过闸流量和闸门变形、应力变化的规律,通过与理论计算过闸流量对比,验证了数值模拟结果的准确性。结果表明:随着闸门开度的增大,闸门动水压力逐渐减小,最大应力区域发生了变化,应依据不同的工作环境进行闸门设计和加固。

Aiming at analyzing the stress distribution of radial gates at partial opening , three-dimensional models of the water and gate was established based on ANSYS and Fluent Software. One-way fluid structure interaction numerical simulation of radial gates is carried out at dif-ferent opening degrees , which Realizable k-ε turbulent model and Volume of Fluid VOF method were adopted. The accuracy of the numerical simulation was verified by comparing the calculated flow rate with the theoretical ones. The result indicates that the hydrodynamic pressure of the radial gate decreases gradually with the increase of the opening degree. Thus different working environments should be considered in the process of design and reinforcement.