Natural and Marangoni convection in partially miscible liquid systems

Chiara Piccolo, Marcello Lappa, Luigi Carotenuto, Raffaele Savino

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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 behavior and capture additional insights into the physics of the phenomenon, following from a delicate balance between counteracting buoyancy and surface tension-driven flows.
LanguageEnglish
Title of host publication55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004
Pages4817-4827
Number of pages11
Volume7
Publication statusPublished - 8 Oct 2004
Event55th International Astronautical Congress - Vancouver, Canada
Duration: 4 Oct 20048 Oct 2004

Conference

Conference55th International Astronautical Congress
CountryCanada
CityVancouver
Period4/10/048/10/04

Fingerprint

Marangoni convection
free convection
dissolving
liquids
miscibility gap
organic liquids
buoyancy
cyclohexane
solidification
plumes
interfacial tension
convection
methyl alcohol
simulation
physics
metals

Keywords

  • partially miscible liquid systems
  • Marangoni convection
  • natural convection
  • numerical simulations
  • dissolution phenomena

Cite this

Piccolo, C., Lappa, M., Carotenuto, L., & Savino, R. (2004). Natural and Marangoni convection in partially miscible liquid systems. In 55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004 (Vol. 7, pp. 4817-4827 ). [IAC-04-J.2.01]
Piccolo, Chiara ; Lappa, Marcello ; Carotenuto, Luigi ; Savino, Raffaele. / Natural and Marangoni convection in partially miscible liquid systems. 55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004. Vol. 7 2004. pp. 4817-4827
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Piccolo, C, Lappa, M, Carotenuto, L & Savino, R 2004, Natural and Marangoni convection in partially miscible liquid systems. in 55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004. vol. 7, IAC-04-J.2.01, pp. 4817-4827 , 55th International Astronautical Congress, Vancouver, Canada, 4/10/04.

Natural and Marangoni convection in partially miscible liquid systems. / Piccolo, Chiara ; Lappa, Marcello; Carotenuto, Luigi ; Savino, Raffaele.

55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004. Vol. 7 2004. p. 4817-4827 IAC-04-J.2.01.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Natural and Marangoni convection in partially miscible liquid systems

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AU - Lappa, Marcello

AU - Carotenuto, Luigi

AU - Savino, Raffaele

PY - 2004/10/8

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N2 - 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 behavior and capture additional insights into the physics of the phenomenon, following from a delicate balance between counteracting buoyancy and surface tension-driven flows.

AB - 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 behavior and capture additional insights into the physics of the phenomenon, following from a delicate balance between counteracting buoyancy and surface tension-driven flows.

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KW - Marangoni convection

KW - natural convection

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KW - dissolution phenomena

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BT - 55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004

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Piccolo C, Lappa M, Carotenuto L, Savino R. Natural and Marangoni convection in partially miscible liquid systems. In 55th Congress of the International Astronautical Federation, Vancouver, Canada, Oct. 4-8, 2004. Vol. 7. 2004. p. 4817-4827 . IAC-04-J.2.01