应用非线性薛定谔方程模拟深海内波的传播

Numerical simulation of internal waves propagation in deep sea by nonlinear Schrdinger equation

本文选取东沙岛以东深海区域,应用描述深海内波的非线性薛定谔方程,采用啁啾的思想,研究了频散和非线性效应之间的关系,模拟了深海内波的传播.数值模拟内波演变趋势与MODIS影像拍摄到的内波演变趋势基本符合,从而验证了应用非线性薛定谔方程模拟深海弱非线性内波传播的合理性.

The deep-sea area east of Dongsha Island is chosen as the research area. The relationship between dispersion and nonlinearity is studied using nonlinear Schrdinger equation which describes deep-sea internal waves in conjuction with the idea of chirps,then the propagation of internal waves in deep sea is simulated. The numerical simulation results are found to be in good agreement with the internal wave MODIS images,which validates the rationality of simulating internal wave propagation in deep sea using nonlinear Schrdinger equation.