Swiss-roll microcombustor in operation
Related work ishere.

Pelton-like flame
One of the flame patterns in 2-D radial microchannel
Related work ishere.
Movie is here.

Spinning flame in a divergent channel.
Reference: Bo Xu and Yiguang Ju, Experimental study of spinning combustion in a mesoscale divergent channel, Proceedings of the Combustion Institute 31 (2007) 3285-3292.