{"title":"A Numerical Simulation of the Indoor Air Flow","authors":"Karel Frana, Jianshun S. Zhang, Milos Muller","country":null,"institution":"","volume":78,"journal":"International Journal of Physical and Mathematical Sciences","pagesStart":938,"pagesEnd":944,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/14371","abstract":"The indoor airflow with a mixed natural\/forced convection\r\nwas numerically calculated using the laminar and turbulent\r\napproach. The Boussinesq approximation was considered for a simplification\r\nof the mathematical model and calculations. The results\r\nobtained, such as mean velocity fields, were successfully compared\r\nwith experimental PIV flow visualizations. The effect of the distance\r\nbetween the cooled wall and the heat exchanger on the temperature\r\nand velocity distributions was calculated. In a room with a simple\r\nshape, the computational code OpenFOAM demonstrated an ability to\r\nnumerically predict flow patterns. Furthermore, numerical techniques,\r\nboundary type conditions and the computational grid quality were\r\nexamined. Calculations using the turbulence model k-omega had a\r\nsignificant effect on the results influencing temperature and velocity\r\ndistributions.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 78, 2013"}