静水中高速艇纵向运动数值模拟-《集美大学学报（自然科学版）》

文章信息/Info

Title:: Longitudinal Motion Simulation for High-Speed Crafts in Steady Water

作者:: 于小平1; 2; 刘建闽1; 2; 陈景锋1; 2; （1．集美大学轮机工程学院，福建厦门 361021；2．福建省船舶与海洋工程重点实验室，福建厦门 361021）

Author(s):: YU Xiao-ping1; 2; LIU Jian-min1; 2; CHEN Jing-feng1; 2; （1. Marine Engineering Institute,Jimei University,Fujian Xiamen 361021,China; 2.Fujian province key laboratory of ship and ocean engineering，Fujian Xiamen 361021,China）

Keywords:: high-speed craft; overset mesh; longitudinal motion-numerical simulation

摘要:: 为准确估算高速艇在静水中航行的水动力性能，以某高速艇为研究对象，基于CFD（Computational Fluid Dynamics）技术，应用切割体网格和重叠网格、两相流、VOF模型、6-DOF模型等物理模型和k－ε湍流模型，对静水中高速艇升沉、纵摇耦合运动进行数值模拟，分析了高速艇阻力随航速变化及运动过程中纵倾角度和重心位置的变化情况，并将计算结果与船模实验值进行了比较，以证明高速艇纵向运动水动力性能数值模拟方法的可行性和准确性.

Abstract:: In order to evaluate the hydrodynamics of High-Speed Crafts motion in steady water,the coupling motion of heave and pitch was simulated using CFD technology,in which the trimmed and overset mesh,Two-phase Flow,VOF,6-DOF and k－εturbulence model were adopted.The variety of high-speed Crafts resistance was analyzed with the changes of the crafts speed,the trimming angles,and the centre of gravity position.The results were compared with the experimental data of a ship model.It proves that the numerical simulation of longitudinal motion hydrodynamic capability of high-speed crafts is feasible and practical.