A study of abrasive water jet characteristics by CFD simulation
Computational ﬂuid dynamics (CFD) models for ultrahigh velocity waterjets and abrasive waterjets (AWJs) are established using the Fluent 6 flow solver. Jet dynamic characteristics for the ﬂow downstream from a very ﬁne nozzle are then simulated under steady state, turbulent, two-phase and three-phase ﬂow conditions. Water and particle velocities in a jet are obtained under different input and boundary conditions to provide an insight into the jet characteristics and a fundamental understanding of the kerf formation process in AWJ cutting. For the range of downstream distances considered, the results indicate that a jet is characterised by an initial rapid decay of the axial velocity at the jet centre while the cross-sectional ﬂow evolves towards a top-hat proﬁle downstream.
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|Item Type:||Journal Article|
|Additional Information:||This special issue is the Proceedings of the International Conference in Advances in Materials and Processing Technologies|
|Keywords:||Abrasive waterjet, CFD, Multiphase axisymmetric ﬂow, Jet characteristics|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MANUFACTURING ENGINEERING (091000) > CAD/CAM Systems (091001)|
|Divisions:||Current > QUT Faculties and Divisions > Division of Technology, Information and Learning Support
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Research Centres > High Performance Computing and Research Support
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2011 Elsevier|
|Copyright Statement:||This is the author’s version of a work that was accepted for publication in <Journal of Material Processing Technology>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Material Processing Technology, [VOL 153-154 (2011)] DOI: 10.1016/j.jmatprotec.2004.04.037|
|Deposited On:||02 Nov 2011 22:09|
|Last Modified:||23 Mar 2012 08:25|
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