【摘要】 该文基于RANS方程、RNG k-ε湍流模型建立数值波浪水池,用VOF法追踪自由面的位置,并模拟了内河航道中船行波的生成、传播、爬高和岸壁反射过程,且与典型断面航道中船行波在岸坡最大爬高和回落的现场测量值进行了比较,验证了数值模型的有效性。通过对航道中船行波进行数值模拟,获得了船行波的波形及其在岸坡上爬高与回落的最大值。分析了船舶吃水、航速和航道岸坡倾角对特征波高以及最大爬高与回落的影响。最后建立了计算船行波特征波高、爬高和回落的经验公式。更多还原

【Abstract】 A numerical wave basin is developed by using RANS equations and RNG k- ε turbulence model. The free surface is determined by VOF method. The generation, propagation and run-up of ship waves in a channeled river are simulated. The computed maximum run-up and run-down of ship waves in the river are validated using the measured data. A good agreement is found. Through carrying out numerical simulation of ship waves in a channel, the wave patterns of ship waves and the maximum run-up and run-down on a bank slope are got. And the effect of draft, speed and slope angle on characteristic wave height, and the maximum run-up and run-down are analyzed. At last, empirical formulas are proposed to calculate characteristic wave height, run-up and run-down.更多还原