Improvement Of The Mellor–Yamada Turbulence Closure Model Based On Large-Eddy Simulation Data

被引：14
作者：
Mikio Nakanish
机构：
[1] Japan Weather Association,
来源：
Boundary-Layer Meteorology | 2001年 / 99卷
关键词：
Closure constant; Eddy-diffusivity coefficient; Large-eddy simulation; Length scale; Level 3 model; Turbulence closure model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
On the basis of data constructed with large-eddy simulation (LES), an attempt is made to improve the Mellor–Yamada (M–Y) turbulence closure model. Firstly, stably-stratified and convective planetary boundary layers without moisture are simulated by a LES model to obtain a database for the improvement. Secondly, based on the LES data, closure constants are re-evaluated and a new diagnostic equation for the master length scale L is proposed. The new equation is characterized by allowing L in the surface layer to vary with stability instead of constant kz, where k is the von Kármán constant, and z is height.
引用
收藏
页码：349 / 378
页数：29
相关论文
共 54 条
[1]  
Andrén A.(1991)A TKE-Dissipation Model for the Atmospheric Boundary Layer Boundary-Layer Meteorol. 56 207-221
[2]  
Andrén A.(1995)The Structure of Stably Stratified Atmospheric Boundary Layers: A Large-Eddy Simulation Study Quart. J. Roy. Meteorol. Soc. 121 961-985
[3]  
Andrén A.(1993)Single-Point Closures in a Neutrally Stratified Boundary Layer J. Atmos. Sci. 50 3366-3379
[4]  
Moeng C.-H.(1991)Flux Parameterization over Land Surfaces for Atmospheric Models J. Appl. Meteorol. 30 327-341
[5]  
Beljaars A. C. M.(1971)Flux-Profile Relationships in the Atmospheric Surface Layer J. Atmos. Sci. 28 181-189
[6]  
Holtslag A. A. M.(1993)Stratified Turbulence in the Atmosphere and Oceans: A New Subgrid Model J. Atmos. Sci. 50 1925-1935
[7]  
Businger J. A.(1972)Numerical Investigation of Neutral and Unstable Planetary Boundary Layers J. Atmos. Sci. 29 91-115
[8]  
Wyngaard J. C.(1999)Second-Order Modelling of Turbulence in Katabatic Flows Boundary-Layer Meteorol. 92 67-100
[9]  
Izumi Y.(1978)Notes on the Turbulence Closure Model for Atmospheric Boundary Layers J. Meteorol. Soc. Japan 56 466-480
[10]  
Bradley E. F.(1994)The Numerical Solution of the Mellor-Yamada Level 2.5 Turbulent Kinetic Energy Equation in the EtaModel Mon. Wea. Rev. 122 1640-1646
123456