January 1998
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11 Reads
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4 Citations
Wind Engineering
This paper analyses turbulent air flows in and around single and multiple rectangular buildings, with consideration of ventilation effects. The Navier-Stokes and k-ε equations of the turbulence model are solved numerically to develop airflow and ventilation patterns for Reynolds numbers ranging from 105 to 106. Two different computer programs - FKE based on the standard k-ε model and FAKN based on a model of turbulent flow at low Reynolds numbers - are developed and their resulting simulations compared. Results are presented as contours of turbulent kinetic energy, turbulent energy dissipation rate and turbulent kinematic viscosity; in some cases constant pressure patterns are also indicated.