Slightly unstable ' blue whirl ' with soot in the middle

A slightly unstable "blue whirl" with soot in the middle, suggesting a bubble mode of vortex breakdown. Researchers have identified how blue whirls -- a form of fire whirl first discovered in 2016 that burns with a blue color and is nearly soot-free -- are structured.

This research was supported ...This is an NSF Multimedia Gallery item.

Source: NSF Multimedia Gallery - October 7, 2020 Category: Science Source Type: video