Double diffusive natural convection in a partially heated enclosure with Soret and Dufour effects

N. Nithyadevi, Ruey Jen Yang

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

The effect of double-diffusive natural convection of water in a partially heated enclosure with Soret and Dufour coefficients around the density maximum is studied numerically. The right vertical wall has constant temperature θc, while left vertical wall is partially heated θh, with θh > θc. The concentration in right wall is maintained higher than left wall (Cc < Ch) for case I, and concentration is lower in right wall than left wall (Ch > Cc) for case II. The remaining left vertical wall and the two horizontal walls are considered adiabatic. Water is considered as the working fluid. The governing equations are solved by control volume method using SIMPLE algorithm with QUICK scheme. The effect of the various parameters (thermal Rayleigh number, center of the heating location, density inversion parameter, Buoyancy ratio number, Schmidt number, and Soret and Dufour coefficients) on the flow pattern and heat and mass transfer has been depicted. Comprehensive Nusselt and Sherwood numbers data are presented as functions of the governing parameters mentioned above.

Original languageEnglish
Pages (from-to)902-910
Number of pages9
JournalInternational Journal of Heat and Fluid Flow
Volume30
Issue number5
DOIs
Publication statusPublished - 2009 Oct 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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