Moving model experiments on transient pressure induced by a high-speed train passing through noise barrier. Issue 204 (September 2020)

• Record Type: Journal Article
• Authors: Du, Jian; Zhang, Lei; Yang, Ming-zhi; Wu, Fan; Li, Kun
• Is Part Of: Journal of wind engineering and industrial aerodynamics. Issue 204(2020)
• Publication Date: 2020-09
• Subjects: High-speed train -- Noise barrier -- Moving-model rig -- Pressure transients; Wind-pressure -- Periodicals; Buildings -- Aerodynamics -- Periodicals; Pression du vent -- Périodiques; Constructions -- Aérodynamique -- Périodiques; Buildings -- Aerodynamics; Wind-pressure; Periodicals
• DOI: 10.1016/j.jweia.2020.104267
• Languages: English
• ISSNs: 0167-6105

Abstract

Abstract: The pressure variations on train surfaces and noise barriers induced by a model train passing barriers of 0.125 and 0.25 ​m are studied using a 1/20 moving model. Pressure–time history curves on train surfaces and noise barriers are presented and compared with those of BS EN 2005. The influences of train speed, noise-barrier height, and crossing speed of trains are analyzed with their respective pressure distributions. The results indicate that the pressure amplitudes on train surfaces and noise barriers increase when the train speed and the height of the noise barrier increases, and the pressure amplitudes on the same noise barriers decrease significantly when the heights of the pressure taps increase. Highlights: Transient pressures induced by train passing through noise barriers were investigated based on moving model test. Influences of height of noise barrier and train speed on pressure transients were investigated. Single train passing through and two trains crossing by noise barrier were tested on moving model rig. Pressure distributions on train and noise barrier were analyzed.