Turbine Burners: Performance Improvement and Challenge of Flameholding

Nomenclature A = preexponential chemical rate constant a, b = mass fraction exponents in chemical rate law C = correction factor D = cavity depth E = activation energy f = frequency h = enthalpy L = cavity length M = Mach number, mixedness parameter n = Rossiter mode number p = pressure Q = fuel heating value R = universal gas constant Re = Reynolds number St = Strouhal number T = temperature t = time U = flow velocity over cavity x = position along mixing layer Y = mass fraction y = transverse position in mixing layer = ratio of specific heats = burning efficiency = ratio of convective velocity of vorticity to freestream velocity = Rossiter variable = density ! = chemical reaction rate

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