An approach of natural ventilation study in a rectangular house room: case of one scale model

 

A. Memeledje1*, A. Fofana1, A. Gbané2, F. Koffi1, M. A. Djoman2, H. C. Boisson3, S. Touré2

1 Laboratoire de physique de l’atmosphère et mécanique de fluide, UFRSSMT, université de Cocody Abidjan,

Cote d’Ivoire, 22  BP 582 Abidjan 22

2 Laboratoire d’énergie solaire, UFRSSMT, université de Cocody  Abidjan, Cote d’Ivoire, 22  BP 582 Abidjan 22

3 Institut de mécanique de fluide de Toulouse, allée du Pr. Camille Soula, 31400 Toulouse cedex

* Corresponding author: E-mail: djelememe@yahoo.fr

Received: 22 March 2010; revised version accepted: 14 May 2011

 

Abstract

     In turbulent steady study, a brief recall of different equations describing flows with effect of buoyancy forces is made. Then by using the integral method of Patankar Spalding control volume, these equations are discretized and resolved by means of the scheme called SIMPLE (Semi Implicit Method for Pressure Linked Equation). This numerical approach allowed us to work out the numerical simulator, which was then validated by some experiments conceived to this effect. After validation, the numerical simulator was used in a configuration (C22) of reduced dimensions to study convective flows and temperature distribution in a cell when cool air is admitted within it. The aim is to cool the cell by a simple extraction at the ceiling. The simulation of natural ventilation is carried out when one of the vertical walls is heated.

 

Keywords: Natural air-conditioning; Numerical simulation; Thermal field; Dynamic field; Extraction; Natural ventilation.



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