Abstract
Supersonic jets from a high-velocity oxy-fuel thermal spraying gun have been simulated and visualized by numerical analysis. The thermal spraying gun in the present simulation has the same shape as that of a commercially used gun. To visualize the jet structure, the equi-Mach number contours of supersonic jets have been depicted, and the Mach number and static pressure distributions along the jet axis have been, calculated both for under-expanded and correctly-expanded supersonic jets. For under-expanded jets, the diamond shock pattern has been observed.
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