Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

T. KhoualdiM. S. Rouabah M. Bouraoui A. Abidi-Saadb G. Polidori 

Laboratoire de génie climatique, Département de génie climatique, Faculté des Sciences de la Technologie, Université Frères Mentouri Constantine 1. Campus Ahmed Hamani, Constantine 25000, Algeria

Laboratoire d’Energétique Appliquée et de Pollution, Université Constantine 1, Constantine 25000, Algeria

A Faculté des Hydrocarbures et Energies renouvelables et Sciences de la terre et de l’univers, Université Kasdi Merbah, Ouargla 30000, Algérie

GRESPI/Thermomécanique, UFR sciences Exactes et Naturelle, Campus du Moulin de la Housse-BP 1039, Reims 51687, France

Corresponding Author Email: 
tarek-clim@hotmail.com
Page: 
1140-1147
|
DOI: 
https://doi.org/10.18280/ijht.360347
Received: 
5 January 2018
| |
Accepted: 
11 July 2018
| | Citation

OPEN ACCESS

Abstract: 

This paper deals with the numerical modeling of the open flow induced by natural convection within tilted asymmetrically heated channel with constant heat flux equal to 510 W/m2 and for a modified Rayleigh number Ra* =4.5×106. The slope of the channel can vary between 0° and 90°. The inclined channel is immerged in a tank filled with water, which represents the surrounding environment, in order to overcome the heat radiation effect and pressure conditions at the inlet and outlet of the channel. The conservation equations of mass, momentum and energy are solved using the finite volume method and the numerical simulations are performed using Ansys Fluent CFD software. The influence of the inclination of the channel on the thermal and dynamic behaviors of flow within the channel is analyzed. The results are plotted in term of local Nusselt number, streamlines, isotherms and axial velocity profiles as well.

Keywords: 

natural convection, asymmetric heating, inclined channel, PV panels, roof-top DSF

1. Introduction
2. Formation of the Problem
3. Validation
4. Results
5. Conclusions
Nomenclature
  References

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