@article{kribs_moore_hasan_lyons_2013, title={Nitrogen-diluted methane flames in the near-and far-field}, volume={135}, number={4}, journal={Journal of Energy Resources Technology}, author={Kribs, J. and Moore, N. and Hasan, T. and Lyons, K.}, year={2013} } @article{moore_terry_lyons_2011, title={Flame Hysteresis Effects in Methane Jet Flames in Air-Coflow}, volume={133}, ISSN={["0195-0738"]}, DOI={10.1115/1.4003806}, abstractNote={Presented are the results of experiments designed to investigate flame lift-off behavior in the hysteresis regime for low Reynolds number turbulent flows. The hysteresis regime refers to the situation where the jet flame has dual positions favorable to flame stabilization: attached and lifted. Typically, a jet flame is lifted off of a burner and stabilized at some downstream location at a pair of fuel and coflow velocities that is unique to a flame at that position. Since the direction from which that condition is arrived at is important, there is an inherent hysteretic behavior. To supplement previous research on hysteretic behavior in the presence of no coflow and low coflow velocities, the current research focuses on flames that are lifted and reattached at higher coflow velocities, where the flame behavior includes an unexpected downstream recession at low fuel velocities. Observations on the flame behavior related to nozzle exit velocity and coflow velocity are made using video imaging of flame sequences. The results show that a flame can stabilize at a location downstream despite a decrease in the local excess jet velocity and assist in determining the effect of coflow velocity magnitude on hysteretic behavior. These observations are of utility in designing maximum turndown burners in air coflow, especially for determining stability criteria in low fuel-flow applications.}, number={2}, journal={JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME}, author={Moore, N. J. and Terry, S. D. and Lyons, K. M.}, year={2011}, month={Jun} } @article{moore_kribs_lyons_2011, title={Investigation of Jet-Flame Blowout with Lean-Limit Considerations}, volume={87}, ISSN={["1386-6184"]}, DOI={10.1007/s10494-011-9334-3}, number={4}, journal={FLOW TURBULENCE AND COMBUSTION}, author={Moore, Nancy J. and Kribs, James and Lyons, Kevin M.}, year={2011}, month={Dec}, pages={525–536} } @article{moore_lyons_2010, title={Leading-edge flame fluctuations in lifted turbulent flames}, volume={182}, DOI={10.1080/00102200903355017}, abstractNote={Studies are presented that examine the fluctuations in liftoff height of lifted methane flames in the presence of air coflow. At a certain jet exit velocity, a flame will lift from the burner exit and stabilize at some downstream position. The partially-premixed flame front of the lifted flame oscillates in the axial direction, with the fluctuations becoming greater in flames stabilized further downstream. These fluctuations are also observed in flames where blowout is imminent. This work investigates the role of fuel velocity and air co-flow on flame fluctuations in both stable and unstable regimes. The results of video imaging of a lifted methane-air diffusion flame are presented and discussed. Images are used to ascertain the changes in the reaction zone that influence these fluctuations and relate the movement to blowout.}, number={7}, journal={Combustion Science and Technology}, author={Moore, N. J. and Lyons, K. M.}, year={2010}, pages={777–793} } @article{mccraw_moore_lyons_2007, title={Observations on upstream flame propagation in the ignition of hydrocarbon jets}, volume={79}, DOI={10.1007/s10494-006-9071-9}, number={1}, journal={Flow, Turbulence and Combustion}, author={McCraw, J. L. and Moore, N. J. and Lyons, K. M.}, year={2007}, pages={83–97} }