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- Title
Numerical simulation of atomization process of nickelbased alloy powders prepared by vacuum induction melting gas atomization.
- Authors
Kuai-Kuai Guo; Jin Chen; Shuo Shang; Chang-Sheng Liu
- Abstract
ANSYS Fluent 19.0 software is used to numerically simulate atomization process in the production of nickel-based alloy powders by VIGA. The gas flow field in the atomizing chamber and atomization process of the metal melt is studied. Atomizing air flow is sprayed through the nozzle to form supersonic gas flow. The results show that the recirculation zone is inverted cone, and the length of recirculation zone is 12.28 mm. Under the stagnation point, the velocity direction of the air flow is downward, and the velocity increases gradually (the maximum is 457.43 m/s). In gas-liquid two-phase state, the length of recirculation zone is about 16 mm. The higher the turbulence in the recirculation zone and turbulent layer, the more intense the interaction between primary and secondary atomization.
- Subjects
ALLOY powders; ATOMIZATION; STAGNATION point; SUPERSONIC flow; AIR flow; TURBULENT shear flow
- Publication
Vibroengineering Procedia, 2020, Vol 32, p185
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2020.21386