Modeling the 24-Hour Evolution of the Mean and Turbulent Structures of the Planetary Boundary Layer

André, Jean‐Claude; Moor, G. De; Lacarrère, P.; Vachat, R. du

doi:10.1175/1520-0469(1978)035<1861:mtheot>2.0.co;2

Cited by 369 publications

(236 citation statements)

References 0 publications

Supporting

Mentioning

218

Contrasting

Unclassified

Order By: Relevance

“…But as pointed out by Coulman et al (1988) Coulman et al (1986), using a model developed by André et al (1978), have shown that, even if the results were not as good as expected, the model Masciadri et al (2001) considering the temperature near the ground and around the telescope at the Roque de Los Muchachos Observatory. The simulations are close to the measurements, with a comparable dispersion, but the physical time for the model to reach a thermodynamic and kinetic equilibrium is at least 3 hr.…”

Section: Introductionsupporting

confidence: 83%

A Model to Forecast Seeing and Estimate \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empt

Trinquet¹,

Vernin²

2006

PUBL ASTRON SOC PAC

View full text Add to dashboard Cite

show abstract

Section: Introductionsupporting

confidence: 83%

A Model to Forecast Seeing and Estimate \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage[OT2,OT1]{fontenc} \newcommand\cyr{ \renewcommand\rmdefault{wncyr} \renewcommand\sfdefault{wncyss} \renewcommand\encodingdefault{OT2} \normalfont \selectfont} \DeclareTextFontCommand{\textcyr}{\cyr} \pagestyle{empt

Trinquet¹,

Vernin²

2006

PUBL ASTRON SOC PAC

View full text Add to dashboard Cite

show abstract

“…Their model differs significantly from the "main stream" closure models used in traditional second-order closure models. In particular, their parameterization of the pressure-correlations differs from the "standard" ones developed by numerous authors and supported by theoretical and experimental data (Rotta 1951;Launder et al 1975;Lumley 1978;Zeman & Lumley 1979;André et al 1978;Mellor & Yamada 1982;Cheng et al 2002).…”

Section: Features Of the Model: No Ri(cr)mentioning

confidence: 99%

Stellar mixing

Canuto

2011

A&A

View full text Add to dashboard Cite

In this paper we use the Reynolds stress models (RSM) to derive algebraic expressions for the following variables: a) heat fluxes; b) μ fluxes; and c) momentum fluxes. These relations, which are fully 3D, include: 1) stable and unstable stratification, represented by the Brunt-Väisäla frequency,; 2) double diffusion, salt-fingers, and semi-convection, represented by the density ratio R μ = ∇ μ (∇ − ∇ ad ) −1 ; 3) shear (differential rotation), represented by the mean squared shear Σ 2 or by the Richardson number, Ri = N 2 Σ −2 ; 4) radiative losses represented by a Peclet number, Pe; 5) a complete analytical solution of the 1D version of the model. In general, the model requires the solution of two differential equations for the eddy kinetic energy K and its rate of dissipation, ε. In the local and stationary cases, when production equals dissipation, the model equations are all algebraic.

show abstract

“…On the other hand, higher-order turbulence closure models can express the countergradient di¤usion by predicting secondorder moments. Among them, third-order turbulence closure models such as André et al (1978) and Cheng et al (2005) have been often used to evaluate lower-order turbulence closure models (e.g., Therry and Lacarrère 1983). The third-order turbulence closure models, however, have a large number of prognostic equations and require large computer resources.…”

Section: Introductionmentioning

confidence: 99%

Development of an Improved Turbulence Closure Model for the Atmospheric Boundary Layer

Nakanishi

Niino

2009

Journal of the Meteorological Society of Japan

796

447

View full text Add to dashboard Cite

An improved Mellor-Yamada (MY) turbulence closure model (MYNN model: Mellor-YamadaNakanishi-Niino model) that we have developed is summarized and its performance is demonstrated against a large-eddy simulation (LES) of a convective boundary layer. Unlike the original MY model, the MYNN model considers e¤ects of buoyancy on pressure covariances and e¤ects of stability on the turbulent length scale, with model constants determined from a LES database. One-dimensional simulations of Day 33 of the Wangara field experiment, which was conducted in a flat area of southeastern Australia in 1967, are made by the MY and MYNN models and the results are compared with horizontal-average statistics obtained from a threedimensional LES. The MYNN model improves several weak points of the MY model such as an insu‰cient growth of the convective boundary layer, and underestimates of the turbulent kinetic energy and the turbulent length scale; it reproduces fairly well the results of the LES including the vertical distributions of the mean and turbulent quantities. The improved performance of the MYNN model relies mainly on the new formulation of the turbulent length scale that realistically increases with decreasing stability, and partly on the parameterization of the pressure covariances and the expression for stability functions for third-order turbulent fluxes.

show abstract

Modeling the 24-Hour Evolution of the Mean and Turbulent Structures of the Planetary Boundary Layer

Cited by 369 publications

References 0 publications

Stellar mixing

Development of an Improved Turbulence Closure Model for the Atmospheric Boundary Layer

Contact Info

Product

Resources

About