Buhr, Alexander and Henning, Arne and Ehrenfried, Klaus (2020) Boundary Layer Control at Moving Train Models for Slipstream Investigations. International Journal of Railway Technology, 7 (1), pp. 1-25. Saxe-Coburg. doi: 10.4203/ijrt.7.1.1. ISSN 2049-5358.
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Official URL: https://www.ctresources.info/ijrt/paper.html?id=139
Abstract
Trackside induced airflow velocities are an important criterion for the design of high-speed trains. Due to the limited model size and different Reynolds numbers in moving model experiments, the induced flow may not be comparable to real trains. The idea is to control the thickness of the boundary layer using roughness elements. High-Speed PIV and conditional sampling are used to analyze the size and dynamics of the flow structures at the time of maximum velocity. The roughness elements effect the boundary layer and the flow structure at a lower measurement height by increasing the average and maximum velocity.
Item URL in elib: | https://elib.dlr.de/111582/ | ||||||||||||||||
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Document Type: | Article | ||||||||||||||||
Title: | Boundary Layer Control at Moving Train Models for Slipstream Investigations | ||||||||||||||||
Authors: |
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Date: | 23 November 2020 | ||||||||||||||||
Journal or Publication Title: | International Journal of Railway Technology | ||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Volume: | 7 | ||||||||||||||||
DOI: | 10.4203/ijrt.7.1.1 | ||||||||||||||||
Page Range: | pp. 1-25 | ||||||||||||||||
Editors: |
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Publisher: | Saxe-Coburg | ||||||||||||||||
ISSN: | 2049-5358 | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | slipstream, flow structures, double-deck train model, roughness elements, wake turbulence, conditional sampling, high-speed piv, tsg, tsi | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
HGF - Program: | Transport | ||||||||||||||||
HGF - Program Themes: | Terrestrial Vehicles (old) | ||||||||||||||||
DLR - Research area: | Transport | ||||||||||||||||
DLR - Program: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||
DLR - Research theme (Project): | V - Next Generation Train III (old) | ||||||||||||||||
Location: | Göttingen | ||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||
Deposited By: | Buhr, Alexander | ||||||||||||||||
Deposited On: | 10 Dec 2020 09:09 | ||||||||||||||||
Last Modified: | 05 Dec 2024 10:12 |
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