A new method is proposed for determining the evaporation rate of a compact group (cluster) of droplets during a gravitational deposition in a high-temperature gaseous medium. The results of an experimental study of the evaporation rate of the droplets cluster of distilled water with a radius of 0.77 mm in the temperature range of 650–800 K are presented. A significant decrease in the evaporation rate with a decrease in the distance between the droplets was revealed.
In work results of experimental study of influence dispersion of metal powder on burning rate in mixed solid fuel are provided. As metal fuel used additive of aluminum of different type depending on dispersion of powder. The prepared samples of mixed solid fuel were tested in constant volume combustion chamber. The received results of burning rate show that at reduction of dispersion of aluminum powder the burning rate of mixed solid fuel increases.
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