数值水池及其在船舶与海洋工程中的应用

船舶物理模型试验周期长,费用昂贵,外界干扰因素难以控制,测量技术也有待发展,而计算机模拟的数值波浪水池具有费用低、无触点流场测量、无比例尺效应、能消除物模中由传感器尺寸及模型变形等因素对流场的影响,可获得较为详细的流场信息等优点。本文报道了作者在Fluent软件平台的基础上,经过二次开发,在所建立的数值水池中对船舶快速性、船舶与海洋结构物耐波性能等的研究进展。研究表明,数值水池可准确计算模型尺度下的高速船舶的阻力,可准确地模拟再现船舶与海洋结构物周围的自由面波形,计算预报波浪中实尺度船舶与海洋结构物的受力和运动,以及高海情下结构物所受到的冲击力等。

Numerical Tank and Applications in Ship and Marine Hydrodynamics

Ship model test is usually carried out in a long time period at quite high expense,the environmental disturbance can not be easily controlled,and the experimental devices and measuring techniques are still being developed.Numerical simulation is another important mean for ship performance research.Compared to the physical model experiment,it has virtues of low cost,contactless flow field measurement,obtaining detail fluid field information and avoiding the scale effect and the effects of uncontrollable environmental factors.A numerical tank is established by the secondary development on the software Fluent platform.By means of the numerical tank the performances of ship resistance and seakeeping are studied.The resistance of high-speed ships,the free-surface around ships and the impact forces acting on the structure are validated.