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RISA Large-Eddy Simulation Study of Thermal Effects on Turbulence Coherent Structures in and above a Building Array
Publisher: American Meteorological Society
Abstract: hermal effects on turbulent flow in and above a cubical building array are numerically investigated using the parallelized large-eddy simulation model (PALM). Two cases (no heating and bottom heating) are simulated and are ...
Large-Eddy Simulations of Convective Boundary Layers over Flat and Urbanlike Surfaces
Publisher: American Meteorological Society
Abstract: he effects of urbanlike surfaces with a block array on the dry convective boundary layer (CBL) are numerically investigated using the parallelized large-eddy simulation model. Five cases representing a free CBL, a sheared ...
Role of Surface Friction on Shallow Nonprecipitating Convection
Publisher: American Meteorological Society
Abstract: AbstractThe role of surface friction on shallow nonprecipitating convection is investigated using a series of large-eddy simulations with varying surface friction velocity and with a cloud identification algorithm. As ...
Coherent Structures in the Boundary and Cloud Layers: Role of Updrafts, Subsiding Shells, and Environmental Subsidence
Publisher: American Meteorological Society
Abstract: oherent structures, such as updrafts, downdrafts/shells, and environmental subsidence in the boundary and cloud layers of shallow convection, are investigated using a new classification method. Using large-eddy simulation ...
Urban Flow and Dispersion Simulation Using a CFD Model Coupled to a Mesoscale Model
Publisher: American Meteorological Society
Abstract: Flow and pollutant dispersion in a densely built-up area of Seoul, Korea, are numerically examined using a computational fluid dynamics (CFD) model coupled to a mesoscale model [fifth-generation Pennsylvania State ...
Impacts of Mesoscale Wind on Turbulent Flow and Ventilation in a Densely Built-up Urban Area
Publisher: American Meteorological Society
Abstract: urbulent flow in a densely built-up area of Seoul, South Korea, for 0900?1500 LST 31 May 2008 is simulated using the parallelized large-eddy simulation model (PALM) coupled to a mesoscale model (Weather Research and ...
A Large-Eddy Simulation Study of Bottom-Heating Effects on Scalar Dispersion in and above a Cubical Building Array
Publisher: American Meteorological Society
Abstract: hermal effects on scalar dispersion in and above a cubical building array are numerically investigated using the parallelized large-eddy simulation model (PALM). Two cases (no heating and bottom heating) are simulated, and ...
Coherent Structures in Large-Eddy Simulations of a Nonprecipitating Stratocumulus-Topped Boundary Layer
Publisher: American Meteorological Society
Abstract: AbstractThe properties of coherent convective structures are analyzed in a nonprecipitating marine nocturnal stratocumulus-topped boundary layer (STBL) with a series of high-resolution large-eddy simulations (LESs). A new ...
A Large-Eddy Simulation Study of Thermal Effects on Turbulent Flow and Dispersion in and above a Street Canyon
Publisher: American Meteorological Society
Abstract: hermal effects on turbulent flow and dispersion in and above an idealized street canyon with a street aspect ratio of 1 are numerically investigated using the parallelized large-eddy simulation model (?PALM?). Each of ...