trench effect by Kisko
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 Coanda effect from fluid dynamics and the flashover concept from fire dynamics.
effect
phenomenon
scientific
goodtheory
seemsacomet
bendingfire
turk
kingscross
physics
kings
Comments
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Vinayak 20th Mar 2014
I saw this yesterday. Thought to myself, "Hmm.. Could this get FP?" Then today while opening TPT, I thought that I might see it there. VOILA! Already upvoted. -
Sailnir 20th Mar 2014
Who cares if it is easy to make it is original and cool and that gets a 1+ from me! -
Schneumer 20th Mar 2014
I think what's happening is, since constant fire makes neg pressure (in TPT at least), this neg pressure is bounces off the coal, so when this pressure meets the lagging pressure behind it, it strenghens it, pulling it even more while on the right the pressure just flies away and dissipates. Since constant fire increases the pressure, it just keeps getting stronger. Perhaps it's just because the coal is absorbing the constantly amplifying neg pressure and basically becomes a weak gpmp. -
ShadowSaber512 20th Mar 2014
I'm mostly upvoting this because of the science behind it not the actual save XD -
VendettaWaffles 20th Mar 2014
This kind of thing happens here in Colorado, when a wildfire will rush up a mountain. -
Anatol12345 20th Mar 2014
What's The Trench Effect?+1 -
niceguy12 19th Mar 2014
Oh my. -
Sylvi 19th Mar 2014
It is a real thing. Happened in a UK train station with wooden escalators. -
coryman 19th Mar 2014
I think this is legit, and it's just the spreading of the fire causing an increase in air velocity, which moves the fire, causing it to spread, etc. -
jklujm 19th Mar 2014
Is this a real thing? Because that FIRE picked up some serious speed.