Mass Transfer Across an Interface Between Layers in a Double Diffusive Natural Convection.

• Kamakura Katsuyoshi

  Toyama National College of Technology

• Ozoe Hiroyuki

  Institute of Advanced Material Study, Kyushu University

Abstract

When a two-layer system which consists of a solvent (upper layer) and a solution (lower layer) is heated from a vertical side wall and cooled from the opposing side wall, convection starts in each layer. A Galerkin finite-element method was employed for the numerical analyses of this two-layer convection. Computations were carried out for the Prandtl number Pr = 6, the aspect ratio A = 4, the Rayleigh number Ra = 10⁴, the buoyancy ratio N = 2 to 10 and the Lewis number Le = 10 to 100. The concentration in the upper layer increased linearly with time through the transfer of the solute across the interface between the layers. In conclusion, the flux of a solute across the interface was independent of the concentration difference between the layers, but dependent on the diffusion coefficient.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 28 (6), 745-749, 1995

  The Society of Chemical Engineers, Japan

Keywords

• Mass Transfer
• Heat Transfer
• Natural Convection
• Double Diffusive Convection
• Two-Layer Convection

Details

• CRID: 1390001204567110912
• NII Article ID: 10002134887
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.28.745
• COI: 1:CAS:528:DyaK28XhvFWqtg%3D%3D
• ISSN: 18811299
• ISSN: 00219592
• Web Site: http://www.jstage.jst.go.jp/article/jcej/28/6/28_6_745/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed