A three-dimensional mathematical model is proposed to calculate the natural ventilation properties for an isolated room with different opening configurations. The Reynolds averaged Navier-Stokes (RANS) models is adopted and the standard k-ε turbulence mode is selected to study the wind-driven cross natural ventilation. Flow around a building, internal ventilation in building, pressure field are described and circulating flow phenomenon is captured. The calculated pressure coefficients on the mid-plane of building are compared with those of experimental data. The results show that the steady flow pressure coefficient has the same trend as the experimental results. It is also found that the plane of ventilated zone seems to have larger at exit for a larger exit and more air momentum transport would be carried by convection with the increase of exit area. The model can help in assigning comfortable locations for human inside the room.
Etheridge, D, Sandberg, M. 1996. Building Ventilation: Theory and Measurement. John Wiley and Sons, Chister, New York. U.S.A.
Allard, F.1998. Natural Ventilation in Buildings: A Design Handbook, James& James, London UK.
Dascalaki, E, Santamouris, M, Argiriou A, Helmis, C, Asimakopoulos, D.N, Papadopoulos K, & Soilemes, A. 1996. On the Combination of Air Velocity and Flow Measurements in Single Sided Natural Ventilation Configurations. Energy and Buildings. Vol. 24. pp 155~165. Greeze.
Katayama, T, Tsutsumi, M. & Ishii, A. 1992. Full-scale Measurements and Wind Tunnel Test on Cross Ventilation. Journal of Wind Engineering and Industrial Aerodynamics. Vol.44. pp 2553~2562. Japan.
Samir, S.A. 1999. Computational of Natural Ventilation, Journal of Wind Engineering and Industrial Aerodynamics. Vol.82, pp 49~68. Egypt.
Jiang, Y, & Chen, Q.Y. 2003. Buoyancy-driven Single-sided Natural Ventilation in Building with Large Opening. International Journal of Heat and Mass Transfer. Vol.46, pp 973~988. China
Tao, W.Q. 2001. Numerical Heat Transfer (second version). Xi'an Jiaotong University Press. Xi'an (in Chinese). China.
Launder, B.E, & Spalding; D.B. 1972. Lectures in Mathematical Modeling of Turbulence. London: Academic Press. U.K
Castro, I.P, & Ronins, A.G. 1977. The Flow around a Surface Mounted Cube in Uniform Flow and Turbulent Streams. Journal of Fluid Mechanics. Vol. 79. pp 307~355. U.K.
How to cite this article
Li, Y., Niu, M., Zou, G. and Huang, H. (2005). 'Field Modelling on Natural Ventilation for Houses With Different Opening Configurations'. SET Proceedings, 4(1), pp. 240-244. https://doi.org/10.65582/set.2005.054
