Ventilation capacity of street canyons

Thursday 3rd of September 2015

course: Climate City Campus

As cars emitting pollutants and people inhaling contaminated air, both move at the street level, pollution in street canyons (streets flanked by buildings on sides) poses a threat to public health. The main objective of the project was to find a solution to increase the ventilation capacity of street canyons. Ventilation increases with rising intensity of turbulence in the air flow across the canyon. It also increases when wind approaches the canyon at an angle, creating a flow parallel to and through the street. Both processes are stimulated by creating irregular urban surface area. My conclusion: “Although a solution exists, decision making regarding construction is based on many factors, thereby decreasing feasibility”. The project extended my knowledge on turbulent flows and offered great insight into how research is done.

Students involved:

David Kroon