Numerical Simulation of Heating and Ventilation by Natural Convection in a Square Cavity

Main Article Content

El Houcine Mourid
Mohamed Lamine Ghanmi
Omar Hami


Heating and ventilation in the building is essential to establish thermal comfort. The modern means invented to provide us with our heating and ventilation needs are generally expensive and represent sources of pollution. It is for this reason that there are several studies directed towards the research of renewable energies and non-polluting economic systems. The simulation of such a natural system at an almost low cost is the subject of our study in this work. In this work, a numerical study of passive heating and ventilation was made by natural convection in a room containing a heated vertical wall. In the case of heating, the system is closed and two openings are considered in the heated vertical wall allowing the re-circulation of the air in the room and therefore the heating of this latter. In the case of ventilation, the room is open to the outside through two inlet and outlet openings allowing the air circulation from the outside into the room and from the room into the outside which leads to ventilate the room. Numerical results with different mesh and Rayleigh number have been presented and their effects have been discussed.

Article Details

How to Cite
E. H. Mourid, M. L. Ghanmi, and O. Hami, “Numerical Simulation of Heating and Ventilation by Natural Convection in a Square Cavity”, J. Ren. Energies, vol. 1, no. 1, pp. 55 -, Jun. 2022.


H. Boyer, F. Lucas, F. Miranville, A. Bastide, D. Morau (2006). Simulations de dispositifs du type Mur Trombe avec Codyrun.Esim 2006, May, Toronto, Canada. pp.81- 233.

I.E. Sarris, I. Lekakis, N.S. Vlachos (2004), Natural convection in rectangular tanks heated locally from below, International Journal of Heat and Mass Transfer 47: 3549-3563

K. Hami, B. Draoui et O. Hami (2010)," Modélisation d’un système de chauffage passif dans la région de Béchar", Revue des Energies Renouvelables Vol. 13 N 2 : 355 -368

B. Draoui, M. Benyamine, Y. Touhami et B. Tahri(1999)," Simulation Numérique de la Convection Naturelle en Régime Laminaire Transitoire dans une Serre Tunnel Chauffée par le Bas (Flux)", Rev. Energ. Ren. : Valorisation : 141-145

F. Zouiri, M.A. Oulmane, N. Labsi, Y.K. Benkahla, A. Boutra (2017) , "Convection naturelle au sein d’une cavité carrée munie d’une source chauffante placée sur sa paroi inférieure ", 23 ème Congrès Français de Mécanique , Lille, 28 Aout au 1er Septembre 2017.

A. Valencia, R.L. Frederick (1989.), "Heat transfer in square cavities with partially active vertical walls", Int. J. Heat Mass Transfer 32, pp. 1567-1574.

B. Abourida ,M. Hasnaoui ,S. Douamna,(1998) Natural convection in a square cavity with vertical boundaries submitted to periodic temperatures",Revue Générale de Thermique Volume 37, Issue 9, Pages 788-800.

F. Penot and A.-M. Dalbert(1982). "Convection naturelle mixte et forcée dans un thermosiphon vertical chauffé à flux constant". International Journal Heat Mass Transfer, 26 :1639-1647.

S. Ramanathan and R. Kumar (1991). Correlations for Natural Convection Between Heated Vertical Plates. Journal of Heat Transfer, FEBRUARY 1991, Vol. 113/9.

A. Zoubir, D. Christophe, X. Shihe, G.J. Stéphanie, P. Hervé, et al. (2013). Natural Convection in a Vertical Open-Ended Channel: Comparison between Experimental and Numerical Results. Journal of Energy and Power Engineering, David publishing compagny, 7, pp.1265-1276. hal-00777923

R. I. El-Ghnam (2015). Numerical investigation of natural convection heat transfer between two vertical plates with symmetric heating. International Journal of Thermal Technologies, 5(1), 31-44.

G. Desrayaud, E. Chénier, A. Joulin, A. Bastide, B. Brangeon, et al. (2013). Benchmark solutions for natural convection flows in vertical channels submitted to different open boundary conditions. International Journal of Thermal Sciences, Elsevier, 72, pp.18-33.10.1016/j.ijthermalsci.2013.05.003. hal-00841302

V.Dubonsky, G.Zikind, S.Drukman, E.Moshka, Y.Weissa, R.Letan (2001), Natural convection inside ventilated enclusre heated by downword facing plute: experiments and numerical simulation. International journal of heat and mass transfer 44, 3155-3168,