Large-eddy simulations of radiatively driven convection : Sensitivities to the representation of small scales

Large-eddy simulations of a smoke cloud are examined with respect to their sensitivity to small scales as manifest in either the grid spacing or the subgrid-scale (SGS) model. Calculations based on a Smagorinsky SGS model are found to be more sensitive to the effective resolution of the simulation t...

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Bibliographic Details
Published inJournal of the atmospheric sciences Vol. 56; no. 23; pp. 3963 - 3984
Main Authors STEVENS, B, MOENG, C.-H, SULLIVAN, P. P
Format Journal Article
LanguageEnglish
Published Boston, MA American Meteorological Society 01.12.1999
Subjects
Atmosphere
Convection, turbulence, diffusion. Boundary layer structure and dynamics
Earth, ocean, space
Energy
Exact sciences and technology
External geophysics
Kinetic energy
Kinetics
Meteorology
Science
Simulation
Grid pattern
Atmospheric boundary layer
Theoretical study
Turbulence energy
Numerical simulation
Kinetic energy
Convection
Smoke cloud
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Summary:Large-eddy simulations of a smoke cloud are examined with respect to their sensitivity to small scales as manifest in either the grid spacing or the subgrid-scale (SGS) model. Calculations based on a Smagorinsky SGS model are found to be more sensitive to the effective resolution of the simulation than are calculations based on the prognostic turbulent kinetic energy (TKE) SGS model.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-4928
1520-0469
DOI:10.1175/1520-0469(1999)056<3963:LESORD>2.0.CO;2