Computational Study of Liquid Film Evaporation along a Wavy Wall of a Vertical Channel

A numerical study of mixed convection heat and mass transfer along a vertical channel with a wavy wall is performed. The wavy wall is heated by a constant flux, while the other is adiabatic. The discretisation of equations in both liquid and gas phases is realised using an implicit finite difference...

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Bibliographic Details
Published in:Mathematical problems in engineering 2018-01, Vol.2018 (2018), p.1-11
Main Authors: Charef, Adil, Nait Alla, Abderrahman, Feddaoui, M’barek, Najim, Monssif
Format: Article
Language:English
Subjects:
Adiabatic flow
Computer simulation
Cooling
Enthalpy
Evaporation
Finite difference method
Gases
Heat transfer
Mass transfer
Mathematical problems
Reynolds number
Saline water
Salinity
Studies
Temperature
Vapor phases
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Summary:A numerical study of mixed convection heat and mass transfer along a vertical channel with a wavy wall is performed. The wavy wall is heated by a constant flux, while the other is adiabatic. The discretisation of equations in both liquid and gas phases is realised using an implicit finite difference scheme. Results of simulation compare the effect of multiple parameters, especially amplitude and characteristic length of the curve, on the liquid film evaporation process. The results indicate that heat and mass transfer is enhanced by increasing the amplitude and number of wall waves. Moreover, a very small value of waves amplitude of the wall may reduce the sensible heat and mass transfer.
ISSN:1024-123X
1563-5147
DOI:10.1155/2018/4208059