Results 211 to 220 of about 4,295 (258)
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Model chain for buoyant plume dispersion
International Journal of Environment and Pollution, 2017A new original software interface between the WRF mesoscale meteorological model and the SPRAYWEB dispersion model has been developed. The model chain was designed such a highly responsive tool for risk assessment and emergency-response purposes. The model interface reads the wind and temperature fields provided by WRF and interpolates them on a fixed ...
Andrea Bisignano +2 more
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On the influence of topography on plume dispersal
Boundary-Layer Meteorology, 1981Numerical integrations of the three-dimensional Navier-Stokes equations for the problem of plume dispersal in laminar flow over topography are presented. The results show the consequences of various mean flow advection effects in the presence of a constant viscosity.
P. J. Mason, R. I. Sykes
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Dispersion Modelling of the Kilauea Plume
Boundary-Layer Meteorology, 2003Emissions from the Kilauea volcano pose significant environmental and health risks to the Hawaiian community. This paper describes progress toward simulating the concentration and dispersion of plumes of volcanic aerosol after they emanate from the Pu'u O'o vent of the Kilauea volcano.
Annette T. Hollingshead +4 more
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Dispersion of a Plume of Volatile Aerosol
Aerosol Science and Technology, 1983A theoretical basis and numerical schemes are presented for simulating the dispersion of a plume of volatile aerosol. For special cases where analytical solutions are possible, excellent agreement is shown between analytical and numerical solutions.
T. H. Tsang, J. R. Brock
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Smoke Dispersion from Multiple Fire Plumes
AIAA Journal, 1999The effects of multiple fire plumes in a stably stratified atmosphere with a uniform wind are investigated. A parabolized approximation of the steady-state Navier-Stokes equations obtained by replacing the windward velocity component with the ambient wind speed is the basis of the model.
Javier Trelles +2 more
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Dispersion of Fire Plumes in the Atmosphere
2015Direct exposure of populations and ground deposition of contaminants from fire plumes released to the outside environment are highly dependent on the characteristics of atmospheric dispersion. This chapter describes the main determinants of fire plume dispersion and the underlying parameters and functions that can be used for plume dispersion ...
David. J. Hall, Angela m. Spanton
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The oxidation of SO2 to sulfates in dispersing plumes
Atmospheric Environment (1967), 1977Abstract A mathematical model is derived for the oxidation of SO2 to sulfates in chimney plumes. The model assumes slow conversion rates, and uses Freiberg's (1974, 1976) kinetic mechanism for the oxidation of SO2 in aqueous aerosols in the presence of iron catalyst. The predictions are discussed in the light of some measurements made in the plume of
M.A. Lusis, C. R. Phillips
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Fractal Representation of Turbulent Dispersing Plumes
Journal of Applied Meteorology, 1994Abstract Fractal analysis techniques have been applied to the concentration fields from large-eddy simulations of plume dispersion in a turbulent boundary layer. Fractal dimensions between 1.3 and 1.35 are obtained from area-perimeter and box-counting analyses for neutral and convective conditions.
R. I. Sykes, R. S. Gabruk
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Topographic control of a dispersing hydrothermal plume
Earth and Planetary Science Letters, 1998Deep-sea hydrothermal vents represent a major source of heat and chemicals to the oceans and support endemic chemosynthetic biological communities. To fully understand the impact of hydrothermal activity upon the oceans, however, requires investigation of both the physical and the biogeochemical processes which are active in hydrothermal plumes and ...
C.R. German +4 more
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Plume dispersion in a nocturnal drainage wind
Atmospheric Environment (1967), 1983Abstract A series of tracer experiments were conducted under nocturnal drainage wind conditions in a complex terrain setting in the Piceance Basin of western Colorado. Concurrent meteorological information including profiles of wind and temperature as well as gross turbulence fluctuations from fixed 2-m stations provided the basis to test plume ...
Sumner Barr +3 more
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