The trench effect is a combination of circumstances that can rush a fire up an inclined surface. It depends on two well-understood but separate ideas: the Coandă effect from fluid dynamics and the flashover concept from fire dynamics: The Coandă effect is the tendency of a fast stream of gases to bend towards, and adhere to, nearby surfaces.
The trench effect is a combination of circumstances that can rush a fire up an inclined surface. It depends on two well-understood but separate ideas: the Coandă effect from fluid dynamics and the flashover concept from fire dynamics: The Coandă effect is the tendency of a fast stream of gases to bend towards, and adhere to, nearby surfaces.
Source: Wikipedia "Trench effect" · CC BY-SA 4.0
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