A Discussion of Premixed Turbulent Burning Velocity Models Based on Burning Velocity Diagrams¹

Abstract

A new method is proposed to compare models for the premixed turbulent burning velocity on the basis of the model-predicted turbulent burning velocity diagrams in three coordinate planes (Re-Da, ηk/η_O-u′; /S_LO and L/ηO-u′;/_LO) which were usually used to show the phase-diagrams of flame structures in premixed turbulent combustion. As a turbulent burning velocity diagram can show in detail almost all the possible model predictions of turbulent burning velocities at various combustion conditions and the overall characteristics of the model on the same plane, it provides a thorough and direct exhibition of the model. Therefore, comparison of the models on the basis of their respective diagrams is more effective and more thorough than the conventional method which compares models by showing the model-predictions on a u’/S_LO - S_T/S_LO plane for some specific mixtures at different turbulence intensities

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Notes on contributors

HIROYUKI KIDO

Author to whom correspondence should be addressed