Cold Gas Dynamic Spray Technology: The Simulation of Aerodynamics of Flow
Key Engineering Materials(2019)
摘要
Cold gas dynamic spray (CGDS) is a solid-state material additive manufacturing method where the particulate feedstock is accelerated under high pressure and relatively low temperature to supersonic condition to develop thin coatings or 3D freeform objects. In this paper, a literature review of the CGDS state-of-art, explanation of fundamentals of gas dynamic principles required to generate supersonic flow condition, and demonstration of a flow model based on computational flow dynamics (CFD) are presented. The focus of the preliminary 3D CFD model validation is the demonstration aerodynamics structures such as shocks that appear in the CGDS problem.
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关键词
aerodynamics,spray,simulation,flow,gas
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