Vortex bursting is a phenomenon in which a flame propagates at high speed along a vortex. In vortex driving mechanism of the vortex bursting, vortex filament solitons play an important role. In this simulation study, we investigate the formation of vortex filament solitons in methane flame and hydrogen flame by showing helical vortex lines in 3D visualization and a curvature solitary wave in 1D analysis along the vortex line, and compare the solitons in simulations and theory and in methane flame and hydrogen flame. As a result, it was found that the formation of solitons were confirmed in both flames, while the height and speed of solitons differed depending on the fuels. Also, the shapes of solitons in simulation and theory showed a good agreement. Thus, it was thought that the vortex driving mechanism with solitons is a common and important mechanism in vortex bursting and turbulent combustion.
OSHIMA et al. (Wed,) studied this question.
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