Abstract
A multicomponent, two-dimensional axisymmetric transient flow model with variable gas properties is developed to analyze the pulsed detonation thermal spraying process. A high-resolution shock-capturing numerical technique is used to solve the gas-phase governing equations. The choice of the computational grid resolution that ensures the proper analysis of the detonation front is first discussed. The analysis presented also shows the importance of the proper treatment of the open-end boundaries in terms of shock wave transmission through the boundaries as well as the effects this treatment can have on the particulate phase analysis. The variations of the particle velocity and temperature at impact on the target surface with the particle initial loading location are also discussed.
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