 The effect of a moving ground on the flow and aerodynamic noise behaviour of a simplified high-speed train bogieJ. Y. Zhu, Wuyang Hu and D. J. Thompson International Journal of Rail Transportation, 2017, vol. 5, issue 2, 110-125 Abstract: Aeroacoustic sources around the train bogie area are particularly important but involve complex flow. In this study, a numerical investigation is presented of the effect of a moving ground on the flow and aeroacoustic noise behaviour of a train bogie. These make use of the delayed detached-eddy simulation (DDES) combined with an acoustic analogy for noise prediction. First, the flow around an isolated wheel set (1:5 scale) is calculated when it is in proximity to the ground and this is compared with wind-tunnel measurements to verify the simulation. Then the flow and aerodynamic noise behaviour of a simplified high-speed train bogie at scale 1:10 with and without the ground underneath are studied numerically. It is found that a highly turbulent flow is generated within the bogie cavity and the ground increases the noise levels by 6–8 dB due to a combination of acoustic reflection from the ground and modifications to the flow. Date: 2017 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:taf:tjrtxx:v:5:y:2017:i:2:p:110-125 Ordering information: This journal article can be ordered from DOI: 10.1080/23248378.2016.1212677 Access Statistics for this article International Journal of Rail Transportation is currently edited by Wanming Zhai and Kelvin C. P. Wang More articles in International Journal of Rail Transportation from Taylor & Francis Journals |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.