Simulation on double-diffusive Marangoni convection with the presence of entropy generation

Norazam Arbin, Nur Suhailayani Suhaimi, Ishak Hashim

Research output: Contribution to journalArticle

Abstract

Double-diffusive Marangoni convection in an open top square cavity filled with aqueous solution, which both verticals walls are differentially-heated and -salted, is studied numerically with the presence of entropy generation. The finite difference method is applied in this study where the governing parameters involved are the thermal (MaT) and solutal (MaC) Marangoni numbers, together with the Grashof (Gr), Biot (Bi), Prandtl (Pr), Lewis (Le) numbers. The aspect ratio of the cavity is 1 where the buoyancy ratio is kept at 2. The results are portrayed as the contours of streamlines, isotherms, isoconcentrations and entropy generation where the effect of Marangoni number is been considered. The predicted results shown that the heat and mass transfer have similar patterns unlike the entropy generation which display an increasing pattern as the Marangoni number increased.

Original languageEnglish
Article number97817
JournalIndian Journal of Science and Technology
Volume9
Issue number31
DOIs
Publication statusPublished - 2016

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Marangoni convection
entropy
Lewis numbers
cavities
simulation
buoyancy
mass transfer
aspect ratio
isotherms
heat transfer
aqueous solutions

Keywords

  • Double-diffusive
  • Entropy
  • Marangoni effect

ASJC Scopus subject areas

  • General

Cite this

Simulation on double-diffusive Marangoni convection with the presence of entropy generation. / Arbin, Norazam; Suhaimi, Nur Suhailayani; Hashim, Ishak.

In: Indian Journal of Science and Technology, Vol. 9, No. 31, 97817, 2016.

Research output: Contribution to journalArticle

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