Flow Dynamic Simulation of Micro Abrasive Water Jet

被引：9

作者：

Fan, Jingming ^{[1
]}

Fan, Changming ^{[1
]}

Wang, Jun ^{[2
]}

机构：

[1] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Univ New South Wales, Sch Mech & Manufacturing Engn, Sydney, NSW 2052, Australia

来源：

APPLICATION OF DIAMOND AND RELATED MATERIALS | 2011年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Micro abrasive water jet; Computation fluid dynamics (CFD) simulation; Impinging jet; Particle velocity;

D O I：

10.4028/www.scientific.net/SSP.175.171

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simulation of the dynamic characteristics of micro abrasive water jet (MAWJ) is conducted using computation fluid dynamics (CFD) software Fluent 6.3 flow solver. The velocity distributions and particle behaviors of the free jet and impinging jet in and out of the nozzle are investigated under different input and boundary conditions. In the free jet simulation, a reduction in water pressure corresponds to more rapid decay of the jet velocity along the jet axis, whereas particle mass concentration has no influence on the jet velocity. In the impinging jet simulation, the effect of the impingement surface on the flow field increases with a decrease of the stand-off distance. The simulation results in this study provide the foundation for optimizing the nozzle structure and improving cutting efficiency and cutting performance of MAWJ.

引用

页码：171 / +

页数：2

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