A study of abrasive waterjet characteristics by CFD simulation

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Abstract
Computational Fluid Dynamics (CFD) models for ultrahigh velocity waterjets and abrasive waterjets (AWJs) are established using the Fluent6 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 characterized by a decay of the axial velocity at the jet centre and there is a rapid evolution from the inlet conditions to a top-hat velocity profile downstream.
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Author(s)
Liu, H.
Wang, Jun
Kelson, N.
Brown, R.J.
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Publication Year
2004
Resource Type
Journal Article
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UNSW Faculty
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