An SPH Study of Molten Matte–Slag Dispersion

Shungo Natsui, Ryota Nashimoto, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The transient behaviors of two immiscible liquids, namely, molten matte and molten slag, with a high interfacial tension were investigated using the smoothed particle hydrodynamics model. Numerical simulations were performed using a discrete-element-type method that could track the movement of both the continuous liquid phase and the dispersed one directly. Numerical simulations were also performed for conditions corresponding to different interfacial tension and density values. Further, the predicted topological changes as well as the relationship between the physical properties and the droplet size distribution were investigated. It was found that, with an increase in the interfacial tension, the large droplets formed aggregate quickly with the bulk phase, owing to the buoyancy force. It was also found that the absolute value of the interfacial tension determines the interfacial area, suggesting that it also affects the droplet settling time. As such, we can conclude that the nonlinearly changed interface shape can easily become unstable as a result of only a slight change in the curvature.

Original languageEnglish
Pages (from-to)1792-1806
Number of pages15
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Issue number3
Publication statusPublished - 2017 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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