Comparison between experiments and CFD predictions of mixed convection flows in an atrium
| Title | Comparison between experiments and CFD predictions of mixed convection flows in an atrium |
| Publication Type | Conference Proceedings |
| Year of Publication | 2005 |
| Authors | Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Emily E. Wood, Tracy L. Thatcher, Phillip N. Price, Richard G. Sextro, and Ashok J. Gadgil |
| Secondary Title | Proceedings of the 10th International Conference on Indoor Air Quality and Climate |
| Volume | 3(3) |
| Section | Chapter |
| Pagination | 2849-2853 |
| Publisher | Tsinghua University Press |
| Place Published | Beijing, China |
| Publication Language | eng |
| Keywords | airflow, cfd, large indoor space, mixed convection, pollutant dispersion |
| Abstract | This paper compares results from a computational fluid dynamics (CFD) simulation of airflow and pollutant dispersion under mixed-convection conditions with experimental data obtained in our 7m x 9m x 11m high experimental facility. A tracer gas was continuously released from a 1 m2 horizontal source 0.5 m above the floor. Path-integrated concentrations were measured along multiple short and long sampling paths in three horizontal planes. A steady state CFD analysis was used to model these experiments. The Reynolds Averaged Navier-Stokes (RANS) equations were solved for the flow and temperature field using the commercial CFD software, StarCD. CFD results were compared with the measured path-integrated concentrations. Accuracy of CFD predictions was found to improve with inclusion of thermal effects, and further by using a low-Re turbulence model. |
| Custom 1 | 3 |
| Citation Key | 11251 |
