戈壁地区湍流能量耗散率和温度脉动耗散率的分析

刘晓虎;王介民

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高原气象 ›› 1992, Vol. 11 ›› Issue (4) : 344-352.
论文

戈壁地区湍流能量耗散率和温度脉动耗散率的分析

  • 刘晓虎;王介民
作者信息 +

A STUDY OF DISSIPATION RATES OF THE TURBULENT KINETIC ENERGY AND TEMPERATURE VARIANCE IN THE GOBI DESERT REGION

  • Liu Xiaohu;Wang Jiemin
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摘要

本文在分析戈壁地区湍流能谱特征的基础上, 利用惯性副区有关规律, 对湍流能量耗散率ε和温度脉动耗散率N作了初步研究, 得到无因次湍流能量耗散率ΦE为???无因次温度脉动耗散率ΦN为???文中讨论了能量收支方程和温度方差收支方程, 并用得到的ΦE和ΦN关系估算了近地面层的速度和温度特征尺度u*T*, 与涡旋相关方法得到结果比较, 一致性较好。

Abstract

In the paper, turbulent energy dissipation rate e and temperature variance disssipation rate N have been analysed by using turbulent energy spectrum theory in inertial subrange in the Gobi desert region. The dimensionless dissipation rates of turbulent energy(Φε) and temperature variance(ΦN) are ??? The turbulent kinetic energy budget and temperature variance budget are discussed. Mean while, the scaling parameter u* and T* in surface layer are calculated by the spec-tral density dissipation technique and compared with the result of eddy-correlation method, both of them are in good agreement.

关键词

耗散率 / 惯性副区

Key words

Dissipation rate / Inertial subrange

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导出引用
刘晓虎;王介民. 戈壁地区湍流能量耗散率和温度脉动耗散率的分析. 高原气象. 1992, 11(4): 344-352
刘晓虎;王介民. A STUDY OF DISSIPATION RATES OF THE TURBULENT KINETIC ENERGY AND TEMPERATURE VARIANCE IN THE GOBI DESERT REGION. Plateau Meteorology. 1992, 11(4): 344-352

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