采用动网格技术并选取RNGk-ε湍流模型,通过求解非定常RANS方程,对浅水中航行船与停泊船相互作用的三维非定常黏性流场进行了数值分析.计算了停泊船受到的水动力,通过将计算结果与经验公式结果进行对比,验证了本文采用的数值计算方法的有效性;计算了航行船所受水动力,比较了作用在航行船和停泊船上的水动力的大小.最后,计算了不同水深、两船间距、停泊船离岸距离和航行船离岸距离条件下停泊船受到的水动力,并对计算结果进行了分析,得出了以上4种因素对停泊船受到的水动力作用的影响规律.
In this paper, by using the dynamic mesh technique and solving the unsteady RANS equation in conjunction with a RNG k-ε turbulence model, numerical simulation of the three-dimensional unsteady vis- cous flow around a passing ship and a berthed ship in shallow water was conducted, and the hydrodynamic forces acting on the berthed ship were calculated. The proposed method was verified by comparing the nu- merical results with those of empirical formulae. The hydrodynamic forces acting on the passing ship were also calculated and compared with those on the berthed ship. Finally, by analyzing the numerical results obtained at different water depths, lateral distances between the ships, berthed ship to bank distances and passing ship to bank distances, the influences of these factors on the hydrodynamic forces of the berthed ship were illustrated.