ANALYSIS OF THE TURBULENCE PARAMETERISATIONS FOR THE ATMOSPHERIC SURFACE LAYER

被引：4
|
作者：
Caggio, M. [1 ,3 ]
Bodnar, T. [1 ,2 ]
机构：
[1] Czech Acad Sci, Inst Math, Zitna 25, Prague 11567 1, Czech Republic
[2] Czech Tech Univ, Fac Mech Engn, Karlovo Namesti 13, Prague 12135 2, Czech Republic
[3] Univ LAquila, Dept Engn Informat Sci & Math, Via Vetoio, I-67100 Laquila, Italy
来源：
TOPICAL PROBLEMS OF FLUID MECHANICS 2018 | 2018年
关键词：
Atmospheric boundary layer; Monin-Obukhov similarity theory; turbulence parameterisations; strong stratification; critical Richardson number; CRITICAL RICHARDSON-NUMBER; CLOSURE-MODEL; STABILITY; LAND;
D O I：
10.14311/TPFM.2018.005
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The purpose of this short communication is to present a method that aims to express the turbulent variables in the atmospheric surface-layer in function of the stability of the atmosphere. The case of very stable conditions (strong stratification), where theoretical approaches provide conflicting results (see Luhar et al. [11]), is analysed in detail to provide some insight into the limits of applicability for some of the most popular models of turbulence. The problem of the existence of the critical flux Richardson number is also taken into account.
引用
收藏
页码：31 / 38
页数：8
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