| 变分原理和大气运动的稳定性 |
| |
| 引用本文： | 罗德海.变分原理和大气运动的稳定性[J].成都信息工程学院学报,1993(4). |
| |
| 作者姓名： | 罗德海 |
| |
| 作者单位： | 成都气象学院研究所 |
| |
| 摘 要： | 本文通过引入守恒的伪动量(Pseudo-Momentum),并利用Hamilton函数,Casimir泛函,建立了一个新的Lyapunov泛函,在此基础上使用变分原理得到了大气运动所满足的广义稳定性判据。当基本气流仅存在经向切变时,所得到的广义稳定性判据与用经典标准模方法所得到的稳定性判据是一致的。
|
| 关 键 词： | 变分原理 Hamilton函数 伪动量 Lyapunov泛函 稳定性 |
VARIATIONAL PRINCIPLE AND THE STABILITY OF ATMOSPHERIC MOTION |
| |
| Luo Dehai.VARIATIONAL PRINCIPLE AND THE STABILITY OF ATMOSPHERIC MOTION[J].Journal of Chengdu University of Information Technology,1993(4). |
| |
| Authors: | Luo Dehai |
| |
| Abstract: | In this paper, a conservative peseudo- momentum is introduced, and the Hamilton and casimir functionals are applied to establish a new Lyapunov functional. In this siuation the general stability conditions of atmospheric motion are derived by variational principle,and the obtained general stability conditions are consistent with those derived by the classical normal mode method when basic flow only exists meridional shear. |
| |
| Keywords: | Variational prinicple Hamilton functions Peseudo-momentum Lyapunov functional Stability |
| 本文献已被 CNKI 等数据库收录！ |
