Crosswind action on rail vehicles: Wind tunnel experimental analyses

Bocciolone, M.; Cheli, Federico; Corradi, Roberto; Muggiasca, Sara; Tomasini, Gisella Marita

doi:10.1016/j.jweia.2008.02.030

Cited by 200 publications

(134 citation statements)

References 6 publications

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“…The coefficient trend with the angle of attack found for the locomotive is typical of all the leading vehicles of a convoy (Ref. [1], [2], [3], [4], [5] and [6]) and it is due to a transition from slender to bluff body aerodynamic behaviour. Moreover, Figure 7 shows also that the first vehicle is characterized by a roll moment coefficient higher than the one of the second vehicle for all the angles of attack; on the other hand, the values of the vertical force coefficient of the power car are higher than those of the trailer car only in the range 10°-45°.…”

Section: Aerodynamic Coefficients For 1:10 Scale Etr500 Train Modelmentioning

confidence: 98%

“…[3]), with different wind angles of attack, from 0° (wind direction parallel and opposite to the train) to 90° (transversal wind). For each model scale, a specific experimental set up for the measurement of the aerodynamic forces on the power car and on the first trailer car has been designed.…”

Section: Wind Tunnel Testsmentioning

confidence: 99%

“…[2], [3] and [6]). In this section, the 6m-high standard embankment and a typical railway viaduct have been considered and compared, in terms of aerodynamic coefficients, with the flat ground configuration and the effect of the scenario on wind speed will be analysed.…”

Section: Infrastructure Scenario Effectsmentioning

confidence: 99%

See 2 more Smart Citations

Wind tunnel tests on train scale models to investigate the effect of infrastructure scenario

Cheli

Corradi

Rocchi

et al. 2010

Journal of Wind Engineering and Industrial Aerodynamics

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133

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Section: Aerodynamic Coefficients For 1:10 Scale Etr500 Train Modelmentioning

confidence: 98%

Section: Wind Tunnel Testsmentioning

confidence: 99%

See 1 more Smart Citation

Wind tunnel tests on train scale models to investigate the effect of infrastructure scenario

Cheli

Corradi

Rocchi

et al. 2010

Journal of Wind Engineering and Industrial Aerodynamics

Self Cite

133

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“…The tests for the definition of the aerodynamic coefficients of the vehicles were performed in the high-speed test section of the Politecnico di Milano Wind Tunnel [11], where wind speeds up to 55 m/s can be reached keeping the turbulence intensity around 0.2%, which is lower than the limit value imposed by EN 14067-6 [12] equal to 2.5%.…”

Section: Wind Tunnel Testsmentioning

confidence: 99%

A Study of the Influence of Aerodynamic Loads on the Forces Exchanged in a Twistlock Corner Casting Connection of Flat-Wagons

Gialleonardo¹,

Melzi²,

Resta³

et al.

Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance

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In this paper cross-wind effects on freight wagons are studied. A mathematical model of a freight train made up of a flat-car and one or two containers has been built defining the dynamical characteristics of the connection (twistlock-corner casting). Wind tunnel tests on a scaled model are then used to define the aerodynamic coefficients of the wagon, both in loaded and unloaded conditions, considering different trainset layouts. Wind forces are finally applied separately to the container and the flat-car in order to define the CWC of the wagon and to verify the maximum forces exchanged through the twistlock-corner casting connection. The results of the analysis showed that severe conditions with respect to the risk of rollover can be found as a result of a succession of empty and loaded wagons.

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“…Some work has already been done by measuring crosswind effects on moving models in wind tunnels (Bocciolone et al [6]): in this case the issues are related to the difficulties in the measurement of the forces on a moving model in the very short measurement time and on the very low Reynolds' numbers that it is possible to achieve. A moving train test rig has been prepared for the assessment of crosswind effects on trains where the train speeds are higher and at 30° to the flat ground scenario (Dorigatti et al [7]).…”

Section: Introductionmentioning

confidence: 99%

A Computational Fluid Dynamics Study on the Relative Motion Effects for High Speed Train Crosswind Assessment

Premoli¹,

Rocchi²,

Schito³

et al.

Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing

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The effect of the relative motion between a train and the surrounding infrastructure may result in critical scenarios where the infrastructure has a significant effect on the atmospheric wind. This paper analyses using a computational dynamics approach the variation of the aerodynamic force coefficients on the leading vehicle of a high speed train due to the relative motion between the train and the infrastructure. A limited increase (below 10%) in force coefficients are calculated and a small decrease (below 7%) is observed in the characteristic wind curve computation.

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Crosswind action on rail vehicles: Wind tunnel experimental analyses

Cited by 200 publications

References 6 publications

Wind tunnel tests on train scale models to investigate the effect of infrastructure scenario

Wind tunnel tests on train scale models to investigate the effect of infrastructure scenario

A Study of the Influence of Aerodynamic Loads on the Forces Exchanged in a Twistlock Corner Casting Connection of Flat-Wagons

A Computational Fluid Dynamics Study on the Relative Motion Effects for High Speed Train Crosswind Assessment

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