TY - GEN
T1 - Effect of geometric parameters in close-coupled gas atomization
T2 - 2019 International Conference on Powder Metallurgy and Particulate Materials, POWDERMET 2019
AU - Hernandez, Franz
AU - Tiarks, Jordan
AU - White, Emma
AU - Riedemann, Trevor
AU - Byrd, David
AU - Kong, Bo
AU - Anderson, Iver E.
AU - Ward, Thomas
AU - Regele, Jonathan D.
N1 - Publisher Copyright:
© 2019 Metal Powder Industries Federation.
PY - 2020
Y1 - 2020
N2 - The performance of close-coupled gas atomization of liquid metals depends on flow conditions, geometry, and fluid properties. Two important parameters influencing particle size distribution are the gas-to-liquid mass and momentum flux ratios. The gas-to-liquid coupling is inherently linked to the atomization gas die design (with discrete jets) and melt pour-tube tip geometry. Therefore, a better understanding of coupled flow and geometric effects can impact the criteria employed in die and pour-tube tip design. We have explored numerically the effect of parameters, e.g., gas die dimensions and apex angle, on the gas flow and particle size distributions for fixed molten aluminum and nitrogen gas flow conditions. These parameters affect the efficiency of close-coupled gas atomization. Conditions of high coupling tend to reduce particle sizes. This study employs a multiphase compressible 5-equation model in two dimensions (Cartesian).
AB - The performance of close-coupled gas atomization of liquid metals depends on flow conditions, geometry, and fluid properties. Two important parameters influencing particle size distribution are the gas-to-liquid mass and momentum flux ratios. The gas-to-liquid coupling is inherently linked to the atomization gas die design (with discrete jets) and melt pour-tube tip geometry. Therefore, a better understanding of coupled flow and geometric effects can impact the criteria employed in die and pour-tube tip design. We have explored numerically the effect of parameters, e.g., gas die dimensions and apex angle, on the gas flow and particle size distributions for fixed molten aluminum and nitrogen gas flow conditions. These parameters affect the efficiency of close-coupled gas atomization. Conditions of high coupling tend to reduce particle sizes. This study employs a multiphase compressible 5-equation model in two dimensions (Cartesian).
UR - http://www.scopus.com/inward/record.url?scp=85081103938&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:85081103938
T3 - Advances in Powder Metallurgy and Particulate Materials - 2019: Proceedings of the 2019 International Conference on Powder Metallurgy and Particulate Materials
SP - 13
EP - 29
BT - Advances in Powder Metallurgy and Particulate Materials - 2019
PB - Metal Powder Industries Federation
Y2 - 23 June 2019 through 26 June 2019
ER -