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Aerodynamic Optimization of Freight Wagons and Containers: An Approach for Alternative Design Configurations

Öngüner, Emir and Fey, Uwe and Henning, Arne (2019) Aerodynamic Optimization of Freight Wagons and Containers: An Approach for Alternative Design Configurations. In: 12th World Congress on Railway Research. 12th World Congress on Railway Research 2019, 28. Okt. - 01. Nov. 2019, Tokio, Japan.

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Official URL: https://wcrr2019.org/

Abstract

The design of existing freight wagon fleets gives little consideration to aerodynamics. The entire contour is determined by the laws of traditional steel construction and UIC (International Union of Railways) compatibility also greatly restricts the options for drag reduction in case of the air flow both underneath and along the sides of the vehicles. In terms of wind resistance the freight transportation devices incl. locomotives and containers can be characterized as bluff bodies with their sharp edges and straight vertical surfaces. The high penalty due to their poor aerodynamics provides a lot of potential for any exterior design optimizations. Their velocities can reach 115 km/h with an aerodynamic drag contribution of up to 80 % of the total drag. Expectations to increase the top speed of freight trains up to 160 km/h in near future are forcing the industry to put aerodynamics more in focus whereby safety aspects considering roll, pitch and yaw moments will also play an important role, especially in case the train is exposed to cross-winds. In the framework of the EU-FR8RAIL project, a conceptually new approach offers some options with regard to innovative aerodynamic optimization of single wagons and freight trains in contrast to previous approaches. Within this work it is aimed at investigating exterior geometry of alternative concepts for a single freight wagon with a container.

Item URL in elib:https://elib.dlr.de/127127/
Document Type:Conference or Workshop Item (Poster)
Title:Aerodynamic Optimization of Freight Wagons and Containers: An Approach for Alternative Design Configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Öngüner, EmirEmir.Oenguener (at) dlr.deUNSPECIFIED
Fey, Uweuwe.fey (at) dlr.deUNSPECIFIED
Henning, Arnearne.henning (at) dlr.deUNSPECIFIED
Date:October 2019
Journal or Publication Title:12th World Congress on Railway Research
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:railway aerodynamics, freight wagon, wind tunnel measurement
Event Title:12th World Congress on Railway Research 2019
Event Location:Tokio, Japan
Event Type:international Conference
Event Dates:28. Okt. - 01. Nov. 2019
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
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Öngüner, Emir
Deposited On:12 Dec 2019 13:46
Last Modified:12 Dec 2019 13:46

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