Oscillatory response of an idealized two-dimensional diffusion flame: Analytical and numerical study

The heat release response of a two-dimensional (2-D) co-flow diffusion flame is theoretically investigated for the mass fraction fluctuations of reactant concentration at the inlet boundary and for time-varying spatially uniform flow velocity field in the domain. The present work is an extension of the Burke–Schumann steady flame model to an oscillatory situation, but in a 2-D framework. The governing equation of the problem is the scalar...