Effect of a cylindrical shroud on particle conditions in high velocity oxy-fuel spray process

被引：33

作者：

Dolatabadi, A. ^{[1
]}

Mostaghimi, J. ^{[1
]}

Pershin, V. ^{[1
]}

机构：

[1] Univ Toronto, Dept Mech & Ind Engn, 5 Kings Coll Rd, Toronto, ON M5S 3G8, Canada

来源：

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2002年 / 3卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

High velocity oxy-fuel; Cylindrical shroud; Supersonic jet;

D O I：

10.1016/S1468-6996(02)00023-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simulations of solid particles in a highly compressible gas flow in the high velocity oxy-fuel (HVOF) process are presented. The Eulerian formulation is used for the gas flow, and the particle phase is modeled by the Lagrangian method. Effects of attaching a cylindrical shroud to the end of the supersonic HVOF nozzle on gas and particle flows are analyzed. We found that the shroud significantly reduces the oxygen content in the field by protecting the supersonic jet from ambient air entrainment. The validation experiments were performed for the majority of process parameters such as shock formation, particle conditions, and coating oxygen content. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：245 / 255

页数：11

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