TY - GEN
T1 - Numerical Simulation and Validation of Gas and Molten Metal Flows in Close-Coupled Gas Atomization
AU - Hernandez, F.
AU - Riedemann, T.
AU - Tiarks, J.
AU - Kong, B.
AU - Regele, J. D.
AU - Ward, T.
AU - Anderson, I. E.
N1 - Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.
PY - 2019
Y1 - 2019
N2 - Molten metal atomization in close-coupled gas atomization dies can operate between two limiting conditions, jetting and filming, together with several complex mechanisms: liquid-gas drafting, downward/upward shearing, melt bouncing, etc. Liquid jet deformation depends on flow and geometric parameters, such as liquid Reynolds, liquid Weber, and gas Mach numbers, as well as gas jet apex angle and melt tube tip extension and aspect ratio, among others. Understanding their effect is of importance for the metal powder making industry. Numerical gas atomization studies can provide approximated flow information and consider a wide range of conditions, beyond experimental reach. Here, 3D high-resolution simulations employing a 5-equation compressible flow model coupled with the volume-of-fluid method are compared with experiments, for liquid Weber number in the range of 1–30 and liquid Reynolds number below 10,000. This validation explores the predicting capabilities of the numerical model.
AB - Molten metal atomization in close-coupled gas atomization dies can operate between two limiting conditions, jetting and filming, together with several complex mechanisms: liquid-gas drafting, downward/upward shearing, melt bouncing, etc. Liquid jet deformation depends on flow and geometric parameters, such as liquid Reynolds, liquid Weber, and gas Mach numbers, as well as gas jet apex angle and melt tube tip extension and aspect ratio, among others. Understanding their effect is of importance for the metal powder making industry. Numerical gas atomization studies can provide approximated flow information and consider a wide range of conditions, beyond experimental reach. Here, 3D high-resolution simulations employing a 5-equation compressible flow model coupled with the volume-of-fluid method are compared with experiments, for liquid Weber number in the range of 1–30 and liquid Reynolds number below 10,000. This validation explores the predicting capabilities of the numerical model.
UR - http://www.scopus.com/inward/record.url?scp=85064878540&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-05861-6_143
DO - 10.1007/978-3-030-05861-6_143
M3 - 会议稿件
AN - SCOPUS:85064878540
SN - 9783030058609
T3 - Minerals, Metals and Materials Series
SP - 1507
EP - 1519
BT - TMS 2019 148th Annual Meeting and Exhibition Supplemental Proceedings
PB - Springer International Publishing
T2 - 148th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2019
Y2 - 10 March 2019 through 14 March 2019
ER -