Unsteady evaporation and entropy generation in a Couette flow

Unsteady evaporation and entropy generation in a Couette flow

A numerical analysis is carried out for unsteady evaporation of a Newtonian fluid Couette flow confined within a cylindrical annulus with relative rotation. The inner wall is humid and adiabatic, whereas the outer one is isothermal and impermeable. The present hydrodynamic and heat-transfer fields a...

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Main Authors: Abir Sakly, Akram Mazgar, Habib Farhat, Faycal Ben Nejma
Format: Article
Language:English
Published: SAGE Publishing 2017-02-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814017692782
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spelling doaj-552b2612f8c642cbae1a334bd7a201222020-11-25T03:51:58ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402017-02-01910.1177/1687814017692782Unsteady evaporation and entropy generation in a Couette flowAbir Sakly0Akram Mazgar1Habib Farhat2Faycal Ben Nejma3Unit of Ionized and Reactive Media Studies, Preparatory Institute for Engineering Studies of Monastir, University of Monastir, Monastir, TunisiaThe Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Mahdia, TunisiaUnit of Ionized and Reactive Media Studies, Preparatory Institute for Engineering Studies of Monastir, University of Monastir, Monastir, TunisiaUnit of Ionized and Reactive Media Studies, Preparatory Institute for Engineering Studies of Monastir, University of Monastir, Monastir, TunisiaA numerical analysis is carried out for unsteady evaporation of a Newtonian fluid Couette flow confined within a cylindrical annulus with relative rotation. The inner wall is humid and adiabatic, whereas the outer one is isothermal and impermeable. The present hydrodynamic and heat-transfer fields are obtained numerically using the finite volumes method. Main attention was paid to the effect of geometrical and thermodynamic parameters on the entropy creation and air evaporation. The results show that the volumetric entropy generation due to thermal conduction and mass diffusion is distinctly developed compared to entropy generated by fluid friction.https://doi.org/10.1177/1687814017692782
collection DOAJ
language English
format Article
sources DOAJ
author Abir Sakly
Akram Mazgar
Habib Farhat
Faycal Ben Nejma
spellingShingle Abir Sakly
Akram Mazgar
Habib Farhat
Faycal Ben Nejma
Unsteady evaporation and entropy generation in a Couette flow
Advances in Mechanical Engineering
author_facet Abir Sakly
Akram Mazgar
Habib Farhat
Faycal Ben Nejma
author_sort Abir Sakly
title Unsteady evaporation and entropy generation in a Couette flow
title_short Unsteady evaporation and entropy generation in a Couette flow
title_full Unsteady evaporation and entropy generation in a Couette flow
title_fullStr Unsteady evaporation and entropy generation in a Couette flow
title_full_unstemmed Unsteady evaporation and entropy generation in a Couette flow
title_sort unsteady evaporation and entropy generation in a couette flow
publisher SAGE Publishing
series Advances in Mechanical Engineering
issn 1687-8140
publishDate 2017-02-01
description A numerical analysis is carried out for unsteady evaporation of a Newtonian fluid Couette flow confined within a cylindrical annulus with relative rotation. The inner wall is humid and adiabatic, whereas the outer one is isothermal and impermeable. The present hydrodynamic and heat-transfer fields are obtained numerically using the finite volumes method. Main attention was paid to the effect of geometrical and thermodynamic parameters on the entropy creation and air evaporation. The results show that the volumetric entropy generation due to thermal conduction and mass diffusion is distinctly developed compared to entropy generated by fluid friction.
url https://doi.org/10.1177/1687814017692782
work_keys_str_mv AT abirsakly unsteadyevaporationandentropygenerationinacouetteflow
AT akrammazgar unsteadyevaporationandentropygenerationinacouetteflow
AT habibfarhat unsteadyevaporationandentropygenerationinacouetteflow
AT faycalbennejma unsteadyevaporationandentropygenerationinacouetteflow
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