Large-Eddy Simulations with an Immersed Boundary Method: Pollutant Dispersion over Urban Terrain
نویسندگان
چکیده
منابع مشابه
Combined Immersed Boundary/Spectral Method for Large Eddy Simulation of Atmospheric Flows over Topography
Accurate modeling of atmospheric flows over topography plays an important role in the prediction of local weather in mountain areas and snow avalanche due to wind-induced snow redistribution. Large eddy simulation (LES) is a numerical technique in which only the large eddies of the turbulent motions are calculated and the net effect of the small eddies is modeled by a subgrid scale (SGS) model,...
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Large-eddy simulations of the convective boundary layer are compared over hilly versus flat surfaces. Moderate values for the height and horizontal spacing of the hills were selected. Thermallydirect hill-valley circulations are induced by the uneven terrain, accounting for a significant fraction of the resolved energy in the boundary-layer eddies. The probability of upward eddy motion reaches ...
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In the present study, the combination of lattice Boltzmann and immersed boundary methods is used to simulate the motion and deformation of a flexible body. Deformation of the body is studied in microchannel with stenosis and the effect of the flexibility changes on its deformation is investigated. The obtained results in the present manuscript show that by increasing the elasticity modulus, the...
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ژورنال
عنوان ژورنال: Atmosphere
سال: 2020
ISSN: 2073-4433
DOI: 10.3390/atmos11010113