Development of a numerical model for marangoni convection in the micro-scale environment

Takuya Yamamoto, Yasunori Okano, Sadik Dost

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Marangoni convection is induced in liquids by surface tension gradient along a free surface. Such flows also de-velop in nano-and micro-scale systems and play important roles. To have a better understanding for the phenomena occurring in processing of such micro-scale systems, generally two kinds of numerical simulation approaches have been considered: continuum and discrete (molecular dynamics). While the continuum-based techniques cannot capture the intermolecular effects, the molecular dynamics approach requires huge computational cost. To ad-dress the adverse futures of these techniques, a new numerical method has been developed by combining the computational f luid dynamics (CFD) from the continuum side and Langevin dynamics from the discrete ap-proach. The present simulation results have shown that this new numerical technique can successfully study and predict the phenomena occurring in macro-scale process applications.

Original languageEnglish
Article numberJTST0036
JournalJournal of Thermal Science and Technology
Volume11
Issue number3
DOIs
Publication statusPublished - 2016 Jan 1
Externally publishedYes

Keywords

  • Computational fluid dynamics
  • Langevin equation
  • Marangoni convection
  • Micro-scale environ-ment
  • Multi-phase flow
  • Multi-scale modeling
  • Numerical modeling
  • S-CLSVOF method

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Instrumentation
  • Engineering (miscellaneous)

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