| 冷迳流的稳定性及其解析解的分析 |
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| 引用本文： | 欧阳首承,朱克云,肖天贵.冷迳流的稳定性及其解析解的分析[J].大气科学,1992,16(4):502-507. |
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| 作者姓名： | 欧阳首承 朱克云 肖天贵 |
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| 作者单位： | 成都气象学院，成都气象学院，成都气象学院 成都 610041，成都 610041，成都 610041 |
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| 摘 要： | 本文利用相法讨论了y方向无限伸延的冷迳流方程.首先发现其非线性项作用由于z方向上的补偿作用而消失,即其相空间的方程是四阶线性常微分方程.利用Hurwitz方法分析其稳定时,证明了唯有中性大气符合冷迳流的稳定性条件.其解析解的趋势表明与观测结果类似.
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| 关 键 词： | 冷迳流 稳定性 相空间 |
Stability of cold-air drainage and analysis of analytic solution |
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| Ouyang Shoucheng,Zhu Keyun and Xiao Tiangui.Stability of cold-air drainage and analysis of analytic solution[J].Chinese Journal of Atmospheric Sciences,1992,16(4):502-507. |
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| Authors: | Ouyang Shoucheng Zhu Keyun and Xiao Tiangui |
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| Abstract: | The equations of cold-air drainage are studied using a phase angle function in this paper. The terrain is considered as an ideal two dimensional slope extending infinitely in y- direction . Firstly , it is found that nonlinear terms disappear because of some effects in z-direction . Then a linear fourth-order differential equation is obtained and its stability is analysed with Hurwitz. Its solution is obtained . Only neutral atmosphere according with stability condition of cold-air drainage . |
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| Keywords: | Cold-air drainage Stability Phase space |
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