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Statements

Subject Item
n2:RIV%2F68407700%3A21340%2F05%3A04155355%21RIV09-MSM-21340___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
The atmospheric boundary layer is the lowest layer over the surface, where the effects of the viscous force are significant. The air flow is determined by the ballance between viscous and Coriolis force, pressure and Archimedean force. Its thickness extends from tens of meters to more then one kilometer in dependence on terrain shape and type of the surface. It is the part of the atmosphere where we live, and thus the one most heavily affected by human activity. Air pollution is one of the serious problems in almost all countries, especially those with high population density and large industrial centers. We create a mathematical model based on stationary Navier-Stokes equations for air flow and diffusion-convection equation describing pollution transport, and solve the model using finite element methods (FEMs). We present a simple algebraic turbulence model with turbulent viscosity and show the treatment of boundary condition on the bottom border of the domain. The atmospheric boundary layer is the lowest layer over the surface, where the effects of the viscous force are significant. The air flow is determined by the ballance between viscous and Coriolis force, pressure and Archimedean force. Its thickness extends from tens of meters to more then one kilometer in dependence on terrain shape and type of the surface. It is the part of the atmosphere where we live, and thus the one most heavily affected by human activity. Air pollution is one of the serious problems in almost all countries, especially those with high population density and large industrial centers. We create a mathematical model based on stationary Navier-Stokes equations for air flow and diffusion-convection equation describing pollution transport, and solve the model using finite element methods (FEMs). We present a simple algebraic turbulence model with turbulent viscosity and show the treatment of boundary condition on the bottom border of the domain. Mezní vrstvou atmosféry rozumíme její nejnižší vrstvu při povrchu země. Její výška se pohybuje v závislosti na tvaru a typu terénu od desítek metrů do jednoho kilometru i více. Je to vrstva nejvíce ovlivněná aktivitou člověka, včetně negativních jevů jako je znečištění ovzduší. Vytváříme matematický model popsaný Navier-Stokesovými rovnicemi pro proudění a difuzně-konvekční rovnicí popisující šíření znečištění a řešíme jej metodou konečných prvků. Používáme jednoduchý algebraický model turbulence zavedením turbulentní viskozity a ukazujeme použití vhodné okrajové podmínky na terénu.
dcterms:title
Numerická simulace proudění vzduchu a šíření znečištění v mezní vrstvě atmosféry Numerical Simulation of Air Flow and Pollution Transport in the Atmospheric Boundary Layer Numerical Simulation of Air Flow and Pollution Transport in the Atmospheric Boundary Layer
skos:prefLabel
Numerical Simulation of Air Flow and Pollution Transport in the Atmospheric Boundary Layer Numerická simulace proudění vzduchu a šíření znečištění v mezní vrstvě atmosféry Numerical Simulation of Air Flow and Pollution Transport in the Atmospheric Boundary Layer
skos:notation
RIV/68407700:21340/05:04155355!RIV09-MSM-21340___
n3:aktivita
n9:Z
n3:aktivity
Z(MSM6840770010)
n3:dodaniDat
n6:2009
n3:domaciTvurceVysledku
n11:5971101
n3:druhVysledku
n18:C
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
533516
n3:idVysledku
RIV/68407700:21340/05:04155355
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Navier-Stokes equations; diffusion-convection equation; FEM
n3:klicoveSlovo
n16:Navier-Stokes%20equations n16:diffusion-convection%20equation n16:FEM
n3:kontrolniKodProRIV
[46898438E6FF]
n3:mistoVydani
Bologna
n3:nazevEdiceCisloSvazku
č. sv. 0
n3:nazevZdroje
Science and Supercomputing in Europe
n3:obor
n14:JC
n3:pocetDomacichTvurcuVysledku
1
n3:pocetStranKnihy
815
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n6:2005
n3:tvurceVysledku
Bauer, Petr
n3:zamer
n4:MSM6840770010
s:numberOfPages
7
n17:hasPublisher
CINECA
n12:isbn
88-86037-17-1
n8:organizacniJednotka
21340