Numerical analysis of droplet breakup, cooling, and solidification during gas atomisation

IF 1.9 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Powder Metallurgy Pub Date : 2023-05-20 DOI:10.1080/00325899.2023.2213002

Gezhou Wang, Y. Deng, F. Adjei-Kyeremeh, Jiali Zhang, I. Raffeis, A. Bührig-Polaczek, A. Kaletsch, C. Broeckmann

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引用次数: 0

Abstract

ABSTRACT As gas atomisation has been the main method for producing high-performance spherical powders in the past decades, its application in the production of metallic powders has become one of the main research subjects in this field. Since it is challenging to directly observe the atomising gas and to investigate melt flow states by experiments, numerical simulation is attracting increasing interest in studying the gas atomisation process. In this work, various computational fluid dynamics models were implemented to simulate the gas atomisation process. With the models, the droplet breakup, cooling, and solidification within the coupled process were investigated. The final mean particle size was predicted through numerical simulations and compared with the statistics extracted from the gas atomisation process, which shows that a reasonable mass median diameter of the particle can be predicted numerically. The results also show a clear relationship between the breakup trajectory and the resulting particle size.

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气体雾化过程中液滴破碎、冷却和凝固的数值分析

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来源期刊

Powder Metallurgy 工程技术-冶金工程

CiteScore

2.90

自引率

7.10%

发文量

审稿时长

3 months

期刊介绍： Powder Metallurgy is an international journal publishing peer-reviewed original research on the science and practice of powder metallurgy and particulate technology. Coverage includes metallic particulate materials, PM tool materials, hard materials, composites, and novel powder based materials.