Acceleration and Heating of Powder Particle by Gas Detonation Products in Channels with a Conical Passage
I. S. Batraev, E. S. Prokhorov, V. Yu. Ul'yanitskii
Lavrent'ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences
Novosibirsk, 630090 Russia
Keywords: gas detonation, particulates, detonation spraying
Abstract
The results of numerical modeling and experimental realization of the impact of a chemically reacting gas flow on powder particles during profiling (diameter increase while maintaining volume) of the barrel combustion chamber of a unit for detonation spraying are given. The passage from the combustion chamber into the barrel muzzle is made using connecting taper sleeves with a small narrowing angle. It is shown that such profiling can significantly reduce the barrel size without compromising the technological capabilities of the detonation unit.
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