#combustioninstability — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #combustioninstability, aggregated by home.social.
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Visualizing Unstable Flames
Inside a combustion chamber, temperature fluctuations can cause sound waves that also disrupt the flow, in turn. This is called a thermoacoustic instability. In this video, researchers explore this process by watching how flames move down a tube. The flame fronts begin in an even curve that flattens out and then develops waves like those on a vibrating pool. Those waves grow bigger and bigger until the flame goes completely turbulent. Visually, it’s mesmerizing. Mathematically, it’s a lovely example of parametric resonance, where the flame’s instability is fed by system’s natural harmonics. (Video and image credit: J. Delfin et al.; research credit: J. Delfin et al. 1, 2)
#2024gofm #combustion #combustionInstability #flame #flowVisualization #fluidDynamics #instability #parametricResonance #physics #resonance #science #thermoacousticInstability #turbulence