Stack effect
Also known as: stack effect
The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy.
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Physical principle driving windcatcher ventilation
The stack effect, or chimney effect, is the movement of air into and out of buildings resulting from air buoyancy, which is the fundamental physical mechanism that allows windcatchers to draw hot air out of a building.