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.
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 - e turbulence 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.
出处
《集美大学学报（自然科学版）》
CAS
2016年第1期49-53,共5页
Journal of Jimei University：Natural Science
基金
福建省自然基金项目(2015J01586)
福建省教育厅重点项目(JA13172)
关键词
高速艇
重叠网格
纵向运动
数值模拟
high-speed craft
overset mesh
longitudinal motion numerical simulation
