摘要
本文对在缓变水深条件下缓坡方程和Boussinesq方程各种形式的差异性进行了比较.明确了线性缓坡方程在频散性上,要好于非线性Boussinesq方程.而Boussinesq方程可讨论非线性的波与波相互作用等问题,而缓坡方程则不能.对Boussinesq方程在不规则波计算上的局限性问题本文也进行了讨论,指出对于不规则被而言分解频率的数量和对高频波所产生的混淆误差的抑制是Boussinesq方程能否用于模拟不规则波的关键.
Mild slope equation and Boussinesq equation have different characteristics in varying water depths. The results indicate that mild slope equation is more adapt in the linear dispersion characteristic than Boussinesq equation, and that Boussinesq equation is able to study nonlinear interaction of waves. For irregular wave simulation, Boussinesq equation has some problems on incident wave number division and the control of high frequency wave during calculation.
出处
《海洋通报》
CAS
CSCD
北大核心
1996年第4期1-7,共7页
Marine Science Bulletin
关键词
缓坡方程
BOUSSINESQ方程
差异性
海洋
波浪
mild slope equation
Boussinesq equation
nonlinear wave interaction
linear dis-persion characteristic
Chaos error
