Motaman, S, Mullis, AM, Cochrane, RF et al. (1 more author) (2012) The effect of melt nozzle geometry of close-coupled gas atomization. In: Advances in Powder Metallurgy and Particulate Materials - 2012, Proceedings of the 2012 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2012. 2012 International Conference on Powder Metallurgy & Particulate Materials, 10-13 Jun 2012, Nashville, Tennessee. MPIF , New Jersey , pp. 213-224. ISBN 978-0-9853397-2-2
Abstract
In this paper we report a numerical modelling study to understand the effect of different internal geometry profiles of four melt delivery nozzles on the gas flow pattern around a melt nozzle tip and atomisation performance during close-coupled gas atomization. The computational modelling of single phase (gas-only) flow at gas atomization pressures of 1, 2, 3, 4 and 5MPa(145, 290, 435.1, 580.1 and 725.1psi) were considered. We found that the geometry of the melt delivery nozzle can have a significant influence on gas flow, recirculation zone and atomisation behaviour. In particular, a nozzle with a hemispherical tip profile appeared to behave quite differently to those with some degree of internal taper.
Metadata
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| 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) > Institute for Materials Research (Leeds) |
| Depositing User: | Symplectic Publications |
| Date Deposited: | 09 May 2014 11:19 |
| Last Modified: | 03 Nov 2016 17:58 |
| Published Version: | http://www.mpif.org/pubs/2012conts.asp?linkid=87 |
| Status: | Published |
| Publisher: | MPIF |
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