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Low swirl burner

Low-swirl burners (LSB) are emerging as an important technology for meeting design requirements in terms of both reliability and emissions for next generation combustion devices. The low-swirl burner concept is extremely simple: premixed fuel exits a pipe after passing through a turbulence generation plate and an annular set of curved vanes. A detached premixed flame anchors in the diverging flow above the pipe exit. Turbulence in fuel stream wrinkles the flame, which enhances the overall rate of combustion in the device.

PeleLM has been used to simulate lean hydrogen and methane flames at the full scale of the laboratory experiments, and the results were probed to explore the details of flame stability and emissions production.

• M. Day, S. Tachibana, J. Bell, M. Lijewski, V. Beckner and R. Cheng, "A combined computational and experimental characterization of lean premixed turbulent low swirl laboratory flames. II. Hydrogen flames," Combustion and Flame, 162(5), pp. 2148-2165, 2015.