期刊
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
卷 45, 期 4, 页码 246-253出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2005.06.011
关键词
CFD; HVOF; gas dynamics; combustion
High velocity oxygen-fuel (HVOF) thermal spraying is a relatively new technology compared to other protective coating methods. Powders sprayed by liquid fuel HVOF guns are able to achieve high impact velocities without overheating, which results in superior coatings. A computational fluid dynamic (CFD) model is developed to investigate propane combustion in the process of HVOF thermal spraying. The numerical methods are described for correct representation of various thermal-physical phenomena such as flame propagation, turbulent mixing and flow acceleration. The principal advantages and shortcomings of various models are discussed. (c) 2005 Elsevier B.V. All rights reserved.
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