Flow at a city street intersection
555 views · Published 6 November 2015 · 2:01 · Indexed 11 October 2026
Channel: Paul Nathan · 2015 · Science & Technology
Cross-section of the flow through a matrix of simple buildings immersed in an atmospheric boundary layer. Despite the simplicity of the geometry, the flow is wonderfully complex. A fine illustration of how the wind at a city street intersection can suddenly change direction with occasional gusts and downdrafts. 1W laser sheet with propylene glycol vapour.