Natural and Marangoni convection in partially miscible liquid systems

R. Savino, C. Piccolo, M. Lappa, L. Carotenuto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This article deals with laboratory experiments and numerical simulations of convection and dissolution phenomena in partially miscible liquids. Transparent organic liquids (cyclohexane and methanol) are considered as a model system to study problems occurring during solidification of metal alloys with a miscibility gap. Non-invasive optical techniques are used to study stable and unstable convective solutal plumes, that are produced at the tip of a liquid droplet dissolving in a non- isothermal partially miscible liquid. Numerical simulations explain the observed behaviour and capture additional insights into the physics of the phenomenon, following from a delicate balance between counteracting buoyancy and surface tension- driven flows.
LanguageEnglish
Pages89-96
Number of pages8
JournalActa Astronautica
Volume57
Issue number2-8
DOIs
Publication statusPublished - 13 May 2005

Fingerprint

Marangoni Convection
Marangoni convection
Natural Convection
free convection
Liquid
dissolving
Liquids
liquids
miscibility gap
organic liquids
buoyancy
Numerical Simulation
cyclohexane
solidification
plumes
Dissolution
Computer simulation
interfacial tension
Buoyancy
Solidification

Keywords

  • Marangoni convection
  • numerical simulations
  • dissolution phenomena
  • partially miscible liquids

Cite this

Savino, R. ; Piccolo, C. ; Lappa, M. ; Carotenuto, L. / Natural and Marangoni convection in partially miscible liquid systems. In: Acta Astronautica. 2005 ; Vol. 57, No. 2-8. pp. 89-96.
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Natural and Marangoni convection in partially miscible liquid systems. / Savino, R.; Piccolo, C.; Lappa, M.; Carotenuto, L.

In: Acta Astronautica, Vol. 57, No. 2-8, 13.05.2005, p. 89-96.

Research output: Contribution to journalArticle

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