Mullis, AM, Ashok Kumar, AP and Borman, DJ (2018) CFD Modelling of High Pressure Gas Atomization of Liquid Metals. In: Nastac, L, Pericleous, K, Sabau, AS, Zhang, L and Thomas, BG, (eds.) CFD Modeling and Simulation in Materials Processing 2018. TMS Annual Meeting 2018, 11-15 Mar 2018, Phoenix, USA. Springer, Cham , pp. 77-84. ISBN 9783319720586
Abstract
High pressure gas atomization (HPGA) is a technique for the manufacture of fine spherical metal powders. Supersonic gas jets are used to disrupt a stream of liquid metal into droplets which then solidify in flight. We construct a CFD model for gas flow within a gas atomizer which is compared against high-speed video footage of a research scale atomizer. Good agreement between simulation and experiment is found for the presence of Prandtl-Meyer waves on the surface of the spray cone. The simulation also reproduces the location of the recirculation zone below the melt delivery nozzle. Simulation results indicate a radially outward flow from the bore of the melt nozzle to the circumferential edge which would facilitate pre-filming
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Keywords: | High Pressure Gas Atomization; Supersonic Flow; Metal Powders |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/P006566/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Oct 2017 15:28 |
Last Modified: | 20 Mar 2018 11:57 |
Status: | Published |
Publisher: | Springer, Cham |
Identification Number: | 10.1007/978-3-319-72059-3_8 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:122760 |