完整Coriolis力作用下非线性ZK方程

发布时间：2018-03-06 03:14

  本文选题：完整科氏力　切入点：ZK方程　出处：《内蒙古师范大学学报(自然科学汉文版)》2017年05期 　论文类型：期刊论文

【摘要】：在正压流体中,从完整Coriolis力作用下的准地转位涡方程出发,采用多时空尺度和摄动方法,导出Rossby波振幅演变满足带有地形和外源强迫的非线性(2+1)维的Zakharov-Kuznetsov方程.通过分析Rossby波振幅的演变,指出Coriolis力的水平分量、β效应、地形效应及外源是诱导(2+1)维Rossby波产生的重要因素.
[Abstract]:In barotropic fluid, based on the quasi-geostrophic vorticity equation under the action of complete Coriolis force, the method of multiple space-time scales and perturbation is used. The Zakharov-Kuznetsov equation of amplitude evolution of Rossby wave satisfying the nonlinear dimension of 21) with topography and exogenous forcing is derived. By analyzing the evolution of amplitude of Rossby wave, the horizontal component and 尾 effect of Coriolis force are pointed out. Topographic effects and exogenous factors are important factors in inducing the formation of Rossby waves.
【作者单位】： 内蒙古农业大学理学院;
【基金】：内蒙古农业大学基础科研启动基金(JC2016001)
【分类号】：O175
，

本文编号：1573087