LAPSE:2021.0018
Published Article
LAPSE:2021.0018
Numerical Simulations of Molten Breakup Behaviors of a de Laval-Type Nozzle, and the Effects of Atomization Parameters on Particle Size Distribution
February 3, 2021
In this work, an atomizer with a de Laval-type nozzle is designed and studied by commercial computational fluid dynamics (CFD) software, and the secondary breakup process during atomization is simulated by two-way coupling and the discrete particle model (DPM) using the Euler-Lagrange method. The simulation result demonstrates that the gas flow patterns greatly change with the introduction of liquid droplets, which clearly indicates that the mass loading effect is quite significant as a result of the gas-droplet interactions. An hourglass shape of the cloud of disintegrating molten metal particles is observed by using a stochastic tracking model. Finally, this simulation approach is used for the quantitative evaluation of the effects of altering the atomizing process conditions (gas-to-melt ratio, operating pressure P, and operating gas temperature T) and nozzle geometry (protrusion length h, half-taper angle α, and gas slit nozzle diameter D) on the particle size distribution of the powders produced.
Record ID
Keywords
breakup, de Laval-type nozzle, discrete particle model, gas atomization, particle size distribution
Subject
Suggested Citation
Xu L, Zhou X, Li J, Hu Y, Qi H, Wen W, Du K, Ma Y, Yu Y. Numerical Simulations of Molten Breakup Behaviors of a de Laval-Type Nozzle, and the Effects of Atomization Parameters on Particle Size Distribution. (2021). LAPSE:2021.0018
Author Affiliations
Xu L: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Zhou X: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Li J: Department of Mechanical Engineering, McGill University, Montreal H2A0C3, QC, Canada [ORCID]
Hu Y: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Qi H: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Wen W: School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
Du K: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Ma Y: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Yu Y: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Zhou X: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Li J: Department of Mechanical Engineering, McGill University, Montreal H2A0C3, QC, Canada [ORCID]
Hu Y: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Qi H: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Wen W: School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
Du K: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Ma Y: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Yu Y: Beijing General Research Institute of Mining & Metallurgy Technology Group, Beijing 100160, China
Journal Name
Processes
Volume
8
Issue
9
Article Number
E1027
Year
2020
Publication Date
2020-08-22
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8091027, Publication Type: Journal Article
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Published Article
LAPSE:2021.0018
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External Link
doi:10.3390/pr8091027
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Version History
[v1] (Original Submission)
Feb 3, 2021
Verified by curator on
Feb 3, 2021
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https://psecommunity.org/LAPSE:2021.0018
Original Submitter
Calvin Tsay
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