Detail publikace

Computational modelling of airflow in urban street canyon and comparasion with measurement

POSPÍŠIL, J. JÍCHA, M.

Originální název

Computational modelling of airflow in urban street canyon and comparasion with measurement

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The main goal of this study was to predict the airflow in a street canyon surrounded by an urban area, using CFD modelling. In the street geometry described in the main part, the actual airflow directly influences air infiltration into buildings. Different models of turbulence were tested as well as specific wind boundary conditions. A correct assignement of boundary conditions, i.e. mainly wind conditions is a very important step to obtain results that are comparable with measurements. Results of 3D airflow in the street canyon were obtained for different velocities and directions of an undisturbed wind above the roof level. Wind conditions were prescribed in two different ways, in one as a velocity profile on the incomming side of the solution domain, in the other as a fixed velocity in the layer where the wind velocity was measured. Results of calculations are compared with measurements done in the studied street canyon. Individual models of turbulence were tested to obtain best agreement between predictions and measurements.

Klíčová slova v angličtině

CFD modelling, street canyon, wind velocity field, airflow, turbulence models

Autoři

POSPÍŠIL, J.; JÍCHA, M.

Rok RIV

2005

Vydáno

1. 1. 2005

Nakladatel

Inderscience Enterprises Ltd.

ISSN

0957-4352

Periodikum

International journal of environment and pollution

Ročník

25

Číslo

1

Stát

Švýcarská konfederace

Strany od

191

Strany do

200

Strany počet

10

BibTex

@article{BUT46152,
  author="Jiří {Pospíšil} and Miroslav {Jícha}",
  title="Computational modelling of airflow in urban street canyon and comparasion with measurement",
  journal="International journal of environment and pollution",
  year="2005",
  volume="25",
  number="1",
  pages="191--200",
  issn="0957-4352"
}