吕宋海峡内波传播演化的数值模拟

Numerical Simulation of the Evolution of Internal Wave Propagation at Luzon Strait

吕宋海峡生成的内波在往南海西部传播的过程中,具有明显的二维辐射特征,这是传统的一维KdV模式无法刻画的。基于弱二维的KP方程,并结合南中国海吕宋海峡附近内孤立波的观测资料,模拟了潮成内波的演化特征。数值结果较好地反应了内孤立波的二维特征。相比于一维的KdV方程,KP在内孤立波的仿真反演方面具有更大的优势。

With the observed wave data, the evolution character of intemal wave was simulated based on the Kadomtsev-Petviashvili （KP） equation. The disintegration process of internal wave was presented, and the model result can also reflect the two dimensional characters of the internal wave evolution. Compared with the KdV equation, KP model has more advantages in modeling the internal wave evolution character.