噴霧粒群の燃焼率に関する理論

概要

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The rate of combustion of liquid-fuel spray injected into the combustion chambers of diesel or gas turbine engines is calculated in the following way : (1) As the distribution functions for the number and the weight of the sprayed drops are expressed generally by the equations (5) and (8), the experimental indices α and β have been determined for various injection nozzles and found to be α=-0.5〜2 and β=1. (2) Assuming that the combustion rate of the sprayed drops obeys the same law of the combustion of a single fuel droplet expressed in equation (9) and considering that the number of sprayed drops remains constant during combustion, the equation for the weight distribution of the sprayed drops are derived as (17) and (20), the graphical integration of which, up to the maximum diameters, gives the total amount of drops unburned. (3) Thus to amount of burned drops ω_τ are given as a function of time t and the distribution indices α and β, the approximate formulae for which are given as (23) or (24).
一般社団法人日本機械学会の論文
1957-04-25