Experimental and numerical analysis of air flow in a dead-end channel

• Published in: Journal of physics. Conference series Vol. 745; no. 3; pp. 32045 - 32052
• Main Authors: Branny, M, Jaszczur, M, Wodziak, W, Szmyd, J
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.09.2016
• Subjects: Air flow; Error analysis; Kinetic energy; Numerical analysis; Numerical methods; Particle image velocimetry; Physics; Qualitative analysis; Reynolds stress; Turbulence models; Velocity; Velocity distribution
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/745/3/032045

This study summarises the results of experimental testing and numerical simulations of airflow in a laboratory model of a blind channel aired by a forced ventilation system. The aim of the investigation is qualitative and quantitative verification of computer modelling data. The components of the velocity vector are measured using Particle Image Velocimetry. Two turbulence models, the standard k-ε model and the Reynolds Stress Model, were used in a numerical calculation. A comparison of the magnitude of the velocity vector and the kinetic energy of turbulence obtained by the experimental methods and numerical calculations shows that in qualitative terms, the predicted velocity field correlates well with the measurement data. The mean relative error between the results of the calculations and measurements for the magnitude of the velocity vector and the kinetic energy of turbulence is about 29% for the Reynolds Stress Model and 33% for the standard k-ε model.