飞机尾流的二维可视化仿真

根据合理假设把飞机尾流卷起后的物质运动模拟为一个无源对流扩散过程,该过程完全描述了尾流大气中各保守被动量(如水蒸汽、位温等)随时间的变化分布特性.利用二维直角坐标系下的有限差分方法对该方程进行求解,得到了尾流中保守被动参量随时间的演化关系,完成了对尾流的二维可视化仿真.

2D Visual Simulation of Aircraft Wake Vortices

Under reasonable assumptions, the aircraft wake vertex was considered to arise the physical movement of a simulated Passive Convection-diffusion process. The equation fully described the water vapor, potential temperature, and other passive conservative parameters which changed with time distribution in the wake vertex. Using two-dimensional Cartesian coordinate system of finite difference methods for solving this equation, evolution of the passive conservative parameters with time was obtained, and a pair of two-dimensional Wake Vertex Visual Simulation was completed.