The matched asymptotic analysis for the limit of large activation energy is applied to the mathematical modeling in a one-dimensional, two-phase, two-reactant, off-stiochiometric combustible mixture. The relations between the normalized flame propagation flux of the spray and the initial droplet size as well as the amount of liquid fuel are examined through non-conserved variations. On the basis of stoichiometry of gas-phase compositions, the influence of liquid fuel on the flame propagation of dilute sprays is described through function of the secondary gasified fuel which enhances the buck gas-phase burning for a lean spray and increases the virtual heat loss induced by droplet varporization for a rich spray, respectively. The flame propagation flux of a lean spray is increased with increasing the liquid fuel loading and decreasing the initial droplet size for a given initial gas-phase composition, and is larger than that of the correspondingly homogeneous premixture without the occurrence of flame extinction.
|Number of pages||11|
|Journal||Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao|
|Publication status||Published - 1989 Oct|
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