Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance
Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance
复制标题
DOI：
10.2478/ijnaoe-2013-0030
复制
发表时间：
2010-09
期刊：
影响因子：
--
通讯作者：
Jeonghwa Seo;D. Seol;J. Lee;S. Rhee
中科院分区：
文献类型：
--
作者：
Jeonghwa Seo;D. Seol;J. Lee;S. Rhee
摘要本文采用计算流体动力学方法，采用雷诺平均Navier-Stokes方程求解器，对某型船舶进行了阻力试验、螺旋桨敞水试验和自航试验，研究了船舶的阻力和推进性能。为了便于网格划分，在船体由复杂曲面组成的船首和船尾区域采用了非结构网格。另一方面，为船体的中间部分和域的其余部分生成结构化网格，即，几何形状相对简单的区域。为了便于螺旋桨敞水试验和自航试验，采用了滑网技术。采用多相流的流体体积法，考虑了自由表面效应。计算结果与已有的实验数据进行了对比验证。
Abstract In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship’s resistance and propulsion performance, using computational fluid dynamics techniques, where a Reynolds-averaged Navier-Stokes equations solver was employed. For convenience of mesh generation, unstructured meshes were used in the bow and stern region of a ship, where the hull shape is formed of delicate curved surfaces. On the other hand, structured meshes were generated for the middle part of the hull and the rest of the domain, i.e., the region of relatively simple geometry. To facilitate the rotating propeller for propeller open water test and self-propulsion test, a sliding mesh technique was adopted. Free-surface effects were included by employing the volume of fluid method for multi-phase flows. The computational results were validated by comparing with the existing experimental data.