Close-coupled gas atomization and nozzle gas dynamics, part (2): Simulation

F. H. Hernandez, T. Riedemann, J. Tiarks, B. Kong, I. E. Anderson, T. Ward, J. D. Regele

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Atomization of liquid metals in close-coupled nozzles is typically conceptualized with the melt-sheet breakup model, where fragments are created near the nozzle insert edge, or with the fountain model, where primary and secondary breakup occur downstream. In the present work, the ideal melt-sheet breakup model is simulated in 2D using a multiphase compressible numerical code. The first problem analyzes horizontal liquid metal injections, while the second problem addresses vertical injections. The results indicate that fast and thin sheets are required to produce ideal primary breakup. Non-ideal flows in the recirculation zone include buildup and sheet-curling. The range of ideal conditions is observed to be narrow for the first problem, which may explain the difficulties in observing primary melt-sheet breakup mode.

Original languageEnglish
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials - 2018
Subtitle of host publicationProceedings of the 2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018
PublisherMetal Powder Industries Federation
Pages35-54
Number of pages20
ISBN (Electronic)9781943694181
StatePublished - 2018
Externally publishedYes
Event2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018 - San Antonio, United States
Duration: 17 Jun 201820 Jun 2018

Publication series

NameAdvances in Powder Metallurgy and Particulate Materials - 2018: Proceedings of the 2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018
Volume2018-June

Conference

Conference2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018
CountryUnited States
CitySan Antonio
Period17/06/1820/06/18

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