The interaction between a burning fuel droplet and satellite oxidizer droplets is studied analytically. The effects of droplet spacings and droplet size ratios on the flame configuration of a burning fuel droplet and a satellite oxidizer droplet is first analyzed in a high temperature and oxidizer-rich environment by using the bispherical coordinate system. Three combustion modes including normal, conjugate and composite combustion are identified at appropriate droplet size ratios and droplet spacings. The burning rate of the fuel droplet is found to be greater than that of an isolated burning fuel droplet and to increase with the decreasing distance between two droplets. The results indicate that the burning rates of fuel droplets increase and the flame size decreases significantly as a result of the increased supply of oxidizer provided by the surrounding oxidizer droplets, therefore, a properly optimized bipropellant combustion is able to achieve a desired combustion performance with a much smaller sized combustor than a conventional spray burner.
|Number of pages||6|
|Publication status||Published - 1987|
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