Basic aerodynamic the0 y is introduced to emphmse the influence of laminar and turbulent bounda y... more Basic aerodynamic the0 y is introduced to emphmse the influence of laminar and turbulent bounda y layers on the characteristics of airfrow around streamlined and non-streamlined bluffbodiessuch as rectangular buildings. Reynolds number is explained as the means to determine the relative influence of inertia forces to viscous forces at each point in an airflow. Bernoulli's equation is introduced asa means to evaluate changes in static and dynamic pressures in organised regions of airflow around buildings but not applicable in wake regions. Some common misconceptions on the influence of building shape on overall wind lift forces on buildings are discussed. The dominance of suction forces due to wind is demonstrated by compadng them to positive wind pressures at the same wind speed. Techniques for evaluating aiflow through buildings are discussed including cautions regarding use of CFD on small computers.
Basic aerodynamic the0 y is introduced to emphmse the influence of laminar and turbulent bounda y... more Basic aerodynamic the0 y is introduced to emphmse the influence of laminar and turbulent bounda y layers on the characteristics of airfrow around streamlined and non-streamlined bluffbodiessuch as rectangular buildings. Reynolds number is explained as the means to determine the relative influence of inertia forces to viscous forces at each point in an airflow. Bernoulli's equation is introduced asa means to evaluate changes in static and dynamic pressures in organised regions of airflow around buildings but not applicable in wake regions. Some common misconceptions on the influence of building shape on overall wind lift forces on buildings are discussed. The dominance of suction forces due to wind is demonstrated by compadng them to positive wind pressures at the same wind speed. Techniques for evaluating aiflow through buildings are discussed including cautions regarding use of CFD on small computers.
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