| Modified Richardson Number in Non-Uniform Saturated Moist Flow |
| |
| 引用本文： | 杨帅 高守亭. Modified Richardson Number in Non-Uniform Saturated Moist Flow[J]. 中国物理快报, 2006, 23(11): 3003-3006 |
| |
| 作者姓名： | 杨帅 高守亭 |
| |
| 作者单位： | [1]Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 [2]Graduate University of the Chinese Academy of Sciences, Beijing 100049 |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 40433007, and the Fund for 0utstanding 0versea Scholars of Chinese Academy of Sciences under Grant No 2004-2-7. |
| |
| 摘 要： | As a useful index, i.e. the Richardson number Ri, is modified in non-uniform saturated moist flow, based on the fact that liquid water is partially dropped out in parcel air. This is more realistic in real moist atmosphere, especially in the rainfall process. The modified Ri presents adequately the influence of numerator, i.e. Brunt- Vaisala frequency （BVF）, on instability. Compared to several former formulae generalized by Durran and Klemp, the modified Ri evidently decreases the stability in rainy regions. In theory, the modified BVF and Ri fix the discontinuity of latent heat release in the transition areas between saturated and unsaturated air by introducing the condensation probability function. Furthermore, the diagnostic analysis of the modified Ri validates the rationality of its application in the non-uniform saturated moist process.
|
| 关 键 词： | 修正Richardson数字 非统一渗透潮湿流 流体力学 潮湿大气 |
| 收稿时间： | 2006-05-11 |
| 修稿时间： | 2006-05-11 |
Modified Richardson Number in Non-Uniform Saturated Moist Flow |
| |
| YANG Shuai, GAO Shou-Ting. Modified Richardson Number in Non-Uniform Saturated Moist Flow[J]. Chinese Physics Letters, 2006, 23(11): 3003-3006 |
| |
| Authors: | YANG Shuai GAO Shou-Ting |
| |
| Affiliation: | 1. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 ; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049 |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
|
