NUMERICAL ANALYSIS OF TURBULENT FLAME IN AN ENCLOSED CHAMBER

ABSTRACT: A combustion model based on a turbulent flame speed closure (TFC) model is proposed for Reynolds stress model (RSM) of premixed combustion in an enclosed chamber the turbulent quantities that determine the turbulent flame speed are obtained at the level of the grid cut- off. The model has been applied to a simple premixed jet flame in a backward-facing step combustor to investigate the combustor response to forced excitations. The present model reported a comprehensive theoretical study on flame velocity in spark ignition engine for iso-octane air mixture. The present model developed is a two-dimensional RSM model. Computer simulations have been performed for the turbulent flame velocity of premixed flame. The speed of propagation of a premixed turbulent flame correlates with the intensity of the turbulence encountered by the flame we outline the numerical procedure, and illustrate the behaviour of the control algorithm on methane flames at various equivalence ratios in two dimensions. The simulation data are used to study the local variation in the speed of propagation due to flame surface curvature. The effects of turbulence and operating conditions on the position, shape, fluctuation, corrugation of the flame front, and the turbulent flame speed are investigated in this study. The results of this work allow a better fundamental understanding of th