Linear stability of mixed convection flow of two immiscible fluids in a vertical annulus

K. T R Chang, Kangping Chen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Linear stability of two immiscible liquids driven by a constant pressure gradient through a long vertical annulus in the gravitational field is investigated. If viscosity depends on temperature, it is found that thermal conductivity stratification can induce an interfacial instability, which is different from the instability identified by Yih (1986). The effect of temperature-dependent viscosity on various unstable modes and mode competitions are studied.

Original languageEnglish (US)
Pages (from-to)434-440
Number of pages7
JournalJournal of Heat Transfer
Volume123
Issue number3
DOIs
StatePublished - Jun 2001
Externally publishedYes

Fingerprint

Mixed convection
annuli
convection
Fluids
fluids
Viscosity
viscosity
stratification
Pressure gradient
pressure gradients
gravitational fields
Thermal conductivity
thermal conductivity
Temperature
temperature
Liquids
liquids

Keywords

  • Analytical
  • Convection
  • Heat transfer
  • Instability
  • Mixed convection

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

Cite this

Linear stability of mixed convection flow of two immiscible fluids in a vertical annulus. / Chang, K. T R; Chen, Kangping.

In: Journal of Heat Transfer, Vol. 123, No. 3, 06.2001, p. 434-440.

Research output: Contribution to journalArticle

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