Yes, fires can rotate. Since the flame from smoldering coals and lightning does not look scary and destructive enough, fires can also cause tornadoes and thunderstorms.
With so few examples, the scientific rationale behind these rotating fire systems is still being developed, but it cannot be denied that these phenomena are incredibly dangerous.
Rotating fire
Scientists have identified 3 types of this phenomenon:
- Fiery whirlwinds. They are relatively small in width, but can extend hundreds of meters in height.
- Fiery tornadoes are stronger than fiery whirlwinds.
- An educated thunderstorm from a forest fire is the largest and most dangerous form of this phenomenon, which is characterized by rotation, lightning and a large fire.
“We know that there are fire vortices, and their height can reach several hundred meters, ” said Nick McCarthy, who studies the interaction of forest fires and thunderstorms at the University of Queensland. “But they do not cause the same degree of anxiety as the phenomena that accompany a thunderstorm.”"
This year, many Australians became closely acquainted with thunderstorms, “superclusters, ” the technical term for which is the mesocyclonic (middle rotating) storm.
Swirling Thunderstorm
In fact, these are really big thunderstorms that cause enormous damage.
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“The worst thunderstorms that happen are those that rotate, ” said McCarthy. “What generates thunderstorms of this type? The upstream and downstream can be configured so that they can continue for really long periods of time. From a system point of view, if you think of this phenomenon as an engine, a thunderstorm is much more effective when it rotates."
For the same reason, the rotation of the bottle will allow the liquid to pour out faster - rotation is the most effective way of transferring heat and energy.
Fire vortices form when small air pressure drops stimulate rotation. Thus, the flame rises to the sky. Therefore, when a thunderstorm or cumulus clouds above a forest fire begin to spin, the consequences are predictably dire.
Physics of destruction
"This causes a really very fast feedback mechanism for the combustion reaction, and suddenly there is a lot more fuel that the fire can access due to this rotating movement and can lead to some incredibly destructive influences, " McCarthy said.
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Moreover, the "funnel" may not be one. When several tornadoes form close to each other, they will merge, and you get a super-cell of a fiery vortex, huge, awesome and destructive.
