摘要
采用非均匀有理B样条(NURBS)对船体曲面形状进行几何表达,所生成的网格直接用于后续的有关船体水动力性能计算工作中。对Wigley船型的线性兴波阻力和斜航操纵运动的船体,结合近似的Kutta条件作了相应的数值计算,从与试验结果的比较来看,该方法具有较好的工程精度,对船舶及海洋工程领域中的计算机辅助设计(CAD)与计算流体动力学(CFD)之间的相互集成,具有推动与促进作用。
This paper adopts the non-uniform rational B-spline(NURBS)to express the geometry of ship hull and the grids generated by the method are directly used in the calculation for hydrodynamic performance of hull.The wave-making resistance and maneuvering hydrodynamics of a Wigley ship at an attack angle with an approximate Kuta condition are numerically computed by using the present method.The comparison of experimental results,shows that the method has engineering precision and a positive effect for the mutual integration between computer aided design(CAD)and computational fluid dynamics(CFD)in the naval architecture and ocean engineering.
出处
《海洋工程》
CSCD
北大核心
2004年第2期7-12,共6页
The Ocean Engineering
基金
国家杰出青年基金资助项目(50025924)
关键词
非均匀有理B样条
计算机辅助设计
计算流体动力学
水动力性能
non-uniform rational B-spline
computer aided design
computational fluid dynamics
hydrodynamic performance
