Atmospheric Boundary Layers: Nature, Theory, and Application to Environmental Mo

Description: Atmospheric Boundary Layers by Alexander Baklanov, Branko Grisogono Accordingly the models express turbulent uxes of momentum and scalars as products of the mean gradient of the transported property and the corresponding turbulent transport coef cient (eddy viscosity, K , heat conductivity, K , or diffusivity, K ). FORMAT Paperback LANGUAGE English CONDITION Brand New Publisher Description Most of practically-used turbulence closure models are based on the concept of downgra- ent transport. Accordingly the models express turbulent uxes of momentum and scalars as products of the mean gradient of the transported property and the corresponding turbulent transport coef cient (eddy viscosity, K , heat conductivity, K , or diffusivity, K ). Fol- M H D lowing Kolmogorov (1941), turbulent transport coef cients are taken to be proportional to the turbulent velocity scale, u , and length scale, l : T T K ? K ? K ? u l . (1) M H D T T 2 Usually u is identi ed with the turbulent kinetic energy (TKE) per unit mass, E ,and K T is calculated from the TKE budget equation using the Kolmogorov closure for the TKE dissipation rate: ? ? E /t , (2) K K T where t ? l /u is the turbulent dissipation time scale. This approach is justi ed when it T T T is applied to neutral stability ows, where l can be taken to be proportional to the distance T from the nearest wall. However, this method encounters dif culties in strati ed ows (both stable and uns- ble). The turbulent Prandtl number Pr = K /K exhibits essential dependence on the T M H strati cation and cannot be considered as constant. Notes Presents peer-reviewed papers from the NATO Advanced Research Workshop on Atmospheric Boundary LayersServes as a state-of-the-art summary of the latest findings and applications in atmospheric boundary layersPays tribute to Professor Sergej Zilitinkevich, with a major part of the presentations based on or linked to his fundamental works Table of Contents Atmospheric boundary layers: nature, theory and applications to environmental modelling and security.- Some modern features of boundary-layer meteorology: a birthday tribute for Sergej Zilitinkevich.- Energy- and flux-budget (EFB) turbulence closure model for stably stratified flows. Part I: steady-state, homogeneous regimes.- Similarity theory and calculation of turbulent fluxes at the surface for the stably stratified atmospheric boundary layer.- Application of a large-eddy simulation database to optimisation of first-order closures for neutral and stably stratified boundary layers.- The effect of mountainous topography on moisture exchange between the "surface" and the free atmosphere.- The influence of nonstationarity on the turbulent flux–gradient relationship for stable stratification.- Chemical perturbations in the planetary boundary layer and their relevance for chemistry transport modelling.- Theoretical considerations of meandering winds in simplified conditions.- Aerodynamic roughness of the sea surface at high winds.- Modelling dust distributions in the atmospheric boundary layer on Mars.- On the turbulent Prandtl number in the stable atmospheric boundary layer.- Micrometeorological observations of a microburst in southern Finland.- Role of land-surface temperature feedback on model performance for the stable boundary layer.- Katabatic flow with Coriolis effect and gradually varying eddy diffusivity.- Parameterisation of the planetary boundary layer for diagnostic wind models. Long Description Most of practically-used turbulence closure models are based on the concept of downgra- ent transport. Accordingly the models express turbulent uxes of momentum and scalars as products of the mean gradient of the transported property and the corresponding turbulent transport coef cient (eddy viscosity, K , heat conductivity, K , or diffusivity, K ). Fol- M H D lowing Kolmogorov (1941), turbulent transport coef cients are taken to be proportional to the turbulent velocity scale, u , and length scale, l : T T K ? K ? K ? u l . (1) M H D T T 2 Usually u is identi ed with the turbulent kinetic energy (TKE) per unit mass, E ,and K T is calculated from the TKE budget equation using the Kolmogorov closure for the TKE dissipation rate: ? ? E /t , (2) K K T where t ? l /u is the turbulent dissipation time scale. This approach is justi ed when it T T T is applied to neutral stability ows, where l can be taken to be proportional to the distance T from the nearest wall. However, this method encounters dif culties in strati ed ows (both stable and uns- ble). The turbulent Prandtl number Pr = K /K exhibits essential dependence on the T M H strati cation and cannot be considered as constant. Feature Presents peer-reviewed papers from the NATO Advanced Research Workshop on Atmospheric Boundary Layers Serves as a state-of-the-art summary of the latest findings and applications in atmospheric boundary layers Pays tribute to Professor Sergej Zilitinkevich, with a major part of the presentations based on or linked to his fundamental works Details ISBN1441925554 Year 2010 ISBN-10 1441925554 ISBN-13 9781441925558 Format Paperback Edition 2007th Imprint Springer-Verlag New York Inc. Place of Publication New York, NY Country of Publication United States Edited by Branko Grisogono DEWEY 551.51015118 Short Title ATMOSPHERIC BOUNDARY LAYERS 20 Edition Description 2007 Language English Media Book Subtitle Nature, Theory, and Application to Environmental Modelling and Security Pages 246 Illustrations VI, 246 p. AU Release Date 2010-10-29 NZ Release Date 2010-10-29 US Release Date 2010-10-29 UK Release Date 2010-10-29 Author Branko Grisogono Publisher Springer-Verlag New York Inc. Publication Date 2010-10-29 Alternative 9780387743189 Audience Professional & Vocational We've got this At The Nile, if you're looking for it, we've got it. With fast shipping, low prices, friendly service and well over a million items - you're bound to find what you want, at a price you'll love! TheNile_Item_ID:137669752;

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