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Bell, James and Burton, David and Thompson, Mark (2020) The boundary-layer characteristics and unsteady flow topology of full-scale operational inter-modal freight trains. Journal of Wind Engineering and Industrial Aerodynamics, 201, pp. 1-21. Elsevier. doi: 10.1016/j.jweia.2020.104164. ISSN 0167-6105.
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Official URL: https://doi.org/10.1016/j.jweia.2020.104164
Abstract
The boundary layers that develop at the sides of full-scale operational inter-modal freight trains were measured using rakes of 4-hole dynamic-pressure probes. The average boundary-layer displacement thickness at the middle of the trains measured under low crosswind was 1.6 m (within the range of 0.5–3 m), showing turbulence intensities of 4–13%, and length scales of 5–30 m. These characteristics, together with other quantitative details provided in the paper, are intended to provide insight for future experiments and simulations to model real-world conditions around freight trains. The sensitivity of the boundary layer and flow topology to environmental crosswinds and loading configuration was also investigated. In addition, insight is provided into the unsteady flow topology around freight trains, the frequency content of the induced flow, and correlation characteristics.
| Item URL in elib: | https://elib.dlr.de/134816/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Title: | The boundary-layer characteristics and unsteady flow topology of full-scale operational inter-modal freight trains | ||||||||||||||||
| Authors: |
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| Date: | 17 April 2020 | ||||||||||||||||
| Journal or Publication Title: | Journal of Wind Engineering and Industrial Aerodynamics | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 201 | ||||||||||||||||
| DOI: | 10.1016/j.jweia.2020.104164 | ||||||||||||||||
| Page Range: | pp. 1-21 | ||||||||||||||||
| Editors: |
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| Publisher: | Elsevier | ||||||||||||||||
| ISSN: | 0167-6105 | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Freight train; Transient flow; Induced flow; Boundary layer; Real-world conditions; Train aerodynamics | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||
| HGF - Program Themes: | Transport System | ||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||
| DLR - Program: | V VS - Verkehrssystem | ||||||||||||||||
| DLR - Research theme (Project): | V - Energie und Verkehr (old) | ||||||||||||||||
| Location: | Göttingen | ||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||
| Deposited By: | Bell, Dr. James | ||||||||||||||||
| Deposited On: | 02 Jun 2020 11:07 | ||||||||||||||||
| Last Modified: | 23 Oct 2023 14:07 |
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