Experimental analysis of the velocity field of the air flowing through the swirl diffusers

7th European Thermal-Sciences Conference

Jaszczur, M.^1 ; Branny, M.^2 ; Karch, M.^2 ; Borowski, M.^2

Faculty of Energy and Fuels, AGH University of Science and Technology, Krakow, Poland^1

Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland^2

关键词: Experimental analysis;    Geometric scale;    In-buildings;    Laboratory models;    Stereo particle image velocimetry;    Swirl diffusers;    Velocity field;    Velocity vectors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032049/pdf
DOI  :  10.1088/1742-6596/745/3/032049

来源: IOP

【 摘 要 】

The article presents the results of experimental studies of flow of air through diffusers. Presented laboratory model is a simplification of the real system and was made in a geometric scale 1:10. Simplifying refer both to the geometry of the object and conditions of air flow. The aim of the study is to determine the actual velocity fields of air flowing out of the swirl diffuser. The results obtained for the diffuser various settings are presented. We have tested various flow rates of air. Stereo Particle Image Velocimetry (SPIV) method was used to measure all velocity vector components. The experimental results allow to determine the actual penetration depth of the supply air into the room. This will allow for better definition of the conditions of ventilation in buildings.