Model showing the Trench Effect (as discovered in the Kings Cross Fire investigation) https://www.youtube.com/watch?v=PSmeg-vn6ho https://www.youtube.com/watch

Model showing the Trench Effect (as discovered in the Kings Cross Fire investigation) https://www.youtube.com/watch?v=PSmeg-vn6ho https://www.youtube.com/watch?v=PSmeg-vn6ho https://en.wikipedia.org/wiki/Trench_effect https://en.wikipedia.org/wiki/Trench_effect >The trench effect occurs when a fire burns beside a steeply inclined surface. The flames lie down along the surface, demonstrating the Coandă effect. The flames heat the material farther up: these emit gases that autoignite in a flashover event. The flames from these areas are themselves subject to the Coandă effect and blow a jet of flame up to the end of the inclined surface. This jet continues until the fuel depletes.