Numerical investigation of dual-stage high velocity oxy-fuel (HVOF) thermal spray process: A study on nozzle geometrical parameters

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• 作者：Hamed Jafari^a ; Sobhan Emami^a ; ^{sobhan@pmc.iaun.ac.ir} ; Yasser Mahmoudi^b
• 关键词：Thermal spray ; Dual-stage high velocity oxy-fuel (HVOF) ; Coupled two-phase model ; Turbulent mixing ; Warm spray gun geometry
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：745-758
• 全文大小：3581 K
• 卷排序：111

文摘

Numerical investigation of combusting, supersonic-subsonic and multi-phase flow in the dual-stage HVOF thermal spray gun. Decoupling particle phase from gas phase leads to remarkable errors in particle situation. Nozzle geometries have potential to exercise control over particle temperature while preserving particle velocity. Turbulent mixing is an important underling factor which determines particle temperature and oxygen content.