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A 13-species reduced mechanism and a 17-species skeletal mechanism for lean methane-air (flame speed only) based on GRI-Mech 1.2.
Citation: R. Sankaran, E.R. Hawkes, J.H. Chen, T.F. Lu, C.K. Law, "Structure of a spatially developing turbulent lean methane-air Bunsen flame," Proceedings of the Combustion Institute 31 (2007) 1291-1298.