Turbulent combustion is a complex phenomenon including an interaction between flame and vortex. Its mechanism has not yet been fully understood, and there are various theories for estimating the turbulent burning velocity. The purposes of this study are to propose a new approximate theoretical formula of turbulent burning velocity by combining the flame area enhancement effect and the vortex bursting effect, and to estimate a value of turbulent burning velocity based on the theory. In modeling, a laminar flame is represented by a planar flame, and a turbulent flame is represented in the form of a large number of cone-shape flames spread on a planar flame. Thus, both of the flame area enhancement effect and the vortex bursting effect were considered. As a result, a new approximate theoretical formula of turbulent burning velocity was constructed, and an example value of turbulent burning velocity was derived from the theory.
SUGAYA et al. (Wed,) studied this question.
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