Journal article
Simulation of Air Entrainment during Mold Filling: Comparison with Water Modeling Experiments
Metallurgical and materials transactions. B, Process metallurgy and materials processing science, Vol.49(5), pp.2599-2610
07/10/2018
DOI: 10.1007/s11663-018-1334-4
Abstract
Oxide inclusions form during pouring of metal castings as a result of air entrainment. Recently, a model was developed by the authors to predict the volumetric air entrainment during pouring. It was found that the velocity, diameter, and turbulence intensity of the liquid stream affect the air entrainment rate during pouring. In this study, the developed air entrainment model is validated with water modeling experiments. In the water modeling studies, water was poured using a bottom pour ladle. The effects of nozzle opening, head height, nozzle diameter, and nozzle extension are simulated. The predictions compare favorably with the experimental measurements. Results indicate that low head height and short pouring time have a beneficial effect on reducing the air entrainment during pouring. In addition, a fully open nozzle and the use of a nozzle extension further reduce the amount of entrained air.
Details
- Title: Subtitle
- Simulation of Air Entrainment during Mold Filling: Comparison with Water Modeling Experiments
- Creators
- Seyyed Hojjat Majidi - University of IowaJohn Griffin - University of Alabama at BirminghamChristoph Beckermann - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Metallurgical and materials transactions. B, Process metallurgy and materials processing science, Vol.49(5), pp.2599-2610
- Publisher
- Springer US
- DOI
- 10.1007/s11663-018-1334-4
- ISSN
- 1073-5615
- eISSN
- 1543-1916
- Language
- English
- Date published
- 07/10/2018
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196644002771
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