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DOI | 10.1016/j.atmosres.2018.09.015 |
Turbulent Prandtl number in the atmospheric boundary layer - where are we now? | |
Li, Dan | |
2019-02-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 216页码:86-105 |
文章类型 | Review |
语种 | 英语 |
国家 | USA |
英文摘要 | First-order turbulence closure schemes continue to be work-horse models for weather and climate simulations. The turbulent Prandtl number, which represents the dissimilarity between turbulent transport of momentum and heat, is a key parameter in such schemes. This paper reviews recent advances in our understanding and modeling of the turbulent Prandtl number in high-Reynolds number and thermally stratified atmospheric boundary layer (ABL) flows. Multiple lines of evidence suggest that there are strong linkages between the mean flow properties such as the turbulent Prandtl number in the atmospheric surface layer (ASL) and the energy spectra in the inertial subrange governed by the Kolmogorov theory. Such linkages are formalized by a recently developed cospectral budget model, which provides a unifying framework for the turbulent Prandtl number in the ASL. The model demonstrates that the stability-dependence of the turbulent Prandtl number can be essentially captured with only two phenomenological constants. The model further explains the stability- and scale-dependences of the subgrid-scale Prandtl number in large-eddy simulation. The connections between mean flow properties and microscale energy distributions shed novel insights into the breakdown of Monin-Obukhov similarity theory under strongly stable conditions. |
英文关键词 | Atmospheric boundary layer Cospectral budget model Thermal stratification Turbulent Prandtl number |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452344700008 |
WOS关键词 | LARGE-EDDY SIMULATION ; DIRECT NUMERICAL-SIMULATION ; STABLY STRATIFIED FLOWS ; TEMPERATURE-HUMIDITY CORRELATION ; OBUKHOV SIMILARITY FUNCTIONS ; DEPENDENT DYNAMIC-MODEL ; SCALE ELIMINATION MODEL ; FLUX RICHARDSON-NUMBER ; SURFACE-LAYER ; CLOSURE-MODEL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38200 |
专题 | 地球科学 |
作者单位 | Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA |
推荐引用方式 GB/T 7714 | Li, Dan. Turbulent Prandtl number in the atmospheric boundary layer - where are we now?[J]. ATMOSPHERIC RESEARCH,2019,216:86-105. |
APA | Li, Dan.(2019).Turbulent Prandtl number in the atmospheric boundary layer - where are we now?.ATMOSPHERIC RESEARCH,216,86-105. |
MLA | Li, Dan."Turbulent Prandtl number in the atmospheric boundary layer - where are we now?".ATMOSPHERIC RESEARCH 216(2019):86-105. |
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