TY - GEN
T1 - Close-coupled gas atomization and nozzle gas dynamics, part (2)
T2 - 2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018
AU - Hernandez, F. H.
AU - Riedemann, T.
AU - Tiarks, J.
AU - Kong, B.
AU - Anderson, I. E.
AU - Ward, T.
AU - Regele, J. D.
N1 - Publisher Copyright:
© 2018 Metal Powder Industries Federation. All rights reserved.
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85064882423&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:85064882423
T3 - Advances in Powder Metallurgy and Particulate Materials - 2018: Proceedings of the 2018 International Conference on Powder Metallurgy and Particulate Material, POWDERMET 2018
SP - 35
EP - 54
BT - Advances in Powder Metallurgy and Particulate Materials - 2018
PB - Metal Powder Industries Federation
Y2 - 17 June 2018 through 20 June 2018
ER -