Basic Numerical study on Indoor Environment──Three-Dimensional Turbulent flow Numerical Research of Indoor Air flow Research of Indoor Air flow
Zhang Ling Lu Wenghu Tang Guangfa(Department of Environmental Engineering,Hunan Univ,410082,Changsha,PRChina)
This paper aims at applying numerical method to study indoor air environment.k-ε two- equations turbulence matliematic model is introduced.CVM is adoptedfor discretization of space derivative in primitive equations. Based on these,three- dimen- sional numerical simulation of indoor air flow under arbitrary external conditions is carried out.The numerical results such as velocity vector and temperature are also visualized as suggestive images through computer graphics,The auther has carefully considered the treatment of boundary condition from tl1e viewpoint of physical idea and numerical method and a better method is proposed. Comparing the numerical results with that of flow visualization experiments andthat calculated from experiential formulae,we can find that these data are basically identical and that numerical simulation has achieved satisfactory effect.Therefore,thispaper offers are effective approach for the study of indoor air flow and optimal design.