Stabilization of thermocapillary instability in a fluid layer with internal heat source

Ishak Hashim, H. Othman, S. Awang Kechil

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The onset of steady thermocapillary (surface-tension-driven Marangoni) instability in a horizontal fluid layer in the presence of a uniform heat generation is considered theoretically using stability theory. The fluid layer, heated from below, is bounded above by a deformable free upper surface and below by a rigid plane boundary. The stability of the fluid layer is investigated and subjected to a feedback control on the temperatures of the boundaries. An exact solution for marginal stability owing to an exchange of stabilities has been obtained. Long wavelength instability may coexist with a finite wavelength instability for certain sets of parameter values, often referred to as frontier points.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalInternational Communications in Heat and Mass Transfer
Volume36
Issue number2
DOIs
Publication statusPublished - Feb 2009

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heat sources
Stabilization
stabilization
Fluids
fluids
Wavelength
heat generation
Heat generation
Hot Temperature
feedback control
wavelengths
Feedback control
Surface tension
interfacial tension

Keywords

  • Marangoni convection
  • Oscillatory instability
  • Thermocapillary

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Stabilization of thermocapillary instability in a fluid layer with internal heat source. / Hashim, Ishak; Othman, H.; Kechil, S. Awang.

In: International Communications in Heat and Mass Transfer, Vol. 36, No. 2, 02.2009, p. 161-165.

Research output: Contribution to journalArticle

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