### Abstract

Marangoni convection has a large effect on materials processing since it remarkably enhances heat and mass transport near a free interface. To have a better understanding of the behavior of Marangoni convection in molten salts, observation and calculation of the thermal convection in a column held between a pair of Pt disks (2mm in diameter) fixed to hot thermocouples, were carried out. Calculated flow patterns and absolute values of fluid velocity agreed well with the observed results. When the temperatures of both disks were set equal and the height of liquid column was 2.4mm, four vortexes were generated on the longitudinal plane with a typical velocity of 15mm/s. From the calculated isothermal lines, the behavior of the enhanced heat transport was obvious; fluid heated at the disks was conveyed to the free surface and the cooled fluid at the surface was conveyed to the inner region. Increase in the height of column and/or increase in the absolute value of applied temperature difference lead to increase in fluid velocity lineally in this calculation range.

Original language | English |
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Pages | 71-80 |

Number of pages | 10 |

Publication status | Published - 1997 Dec 1 |

Event | Proceedings of the 1997 TMS Annual Meeting - Orlando, FL, USA Duration: 1997 Feb 10 → 1997 Feb 13 |

### Other

Other | Proceedings of the 1997 TMS Annual Meeting |
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City | Orlando, FL, USA |

Period | 97/2/10 → 97/2/13 |

### ASJC Scopus subject areas

- Geology
- Metals and Alloys

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## Cite this

*Observation and calculation of Marangoni convection induced thermally in a molten salt*. 71-80. Paper presented at Proceedings of the 1997 TMS Annual Meeting, Orlando, FL, USA, .