利用航海仿真技术,对气候变化背景的各种海洋环境条件下的船舶运动进行模拟仿真是评估气候对航运影响的一个有效手段.文中将研究重点放在如何获取一个真实的海洋环境场,依托海洋、大气、浪模式发展了一个联合环境动力预报系统,对海洋三维环境要素进行高分辨模拟预报.通过真实个例的实验研究表明,这一方法能够得到高精度而且真实协调的环境场数据.将这些模拟和预报的环境要素场,例如海面风、海流和海浪,与船舶运动方程相结合可以计算船舶在该种真实的海洋环境条件下的运动轨迹和姿态.利用VC和OpenGL进行联合编程,运用虚拟现实技术构造三维的海洋场景,取得了较好的效果.
Ship navigation simulation is a hot topic in recent years, of which the simulation of Three-Dimension environment field is a key problem. Different from traditional method, this paper focuses its emphases on how to get a real marine environment. Depending on the single air, sea, wave numerical model, this paper develops a Mesosacle Coupled Model System (MCMS) based on large-scale distributed scientific computing, by which the marine environment can simulated in detail be detail. Through the experiment of a real case, the performance of MCMS is proved that it can provide a high precise and harmonious environment field. At the same time, the simulated datum of wind, current and wave can be introduced into calculating the ship motion in this marine environment. Virtual reality technology is used to create the three dimension sea scene by VC and OpenGL and it has taken a good result.