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Research Article | 21-April-2017

A framework for categorizing risks in High Speed Train (HST) projects: the example of the first HST in Brazil

High Speed Train projects are exposed to risks of different natures, such as: low participation of private companies in the new railways construction, lack of skilled labor, high technology not available in the internal market, high costs with land acquisition, among others. Such risks if not managed properly can become real problems and compromise the achievement of the project objectives. The risk identification is the process of collection and description of events that can have negative

Viviane GRUBISIC, Elisete ZAGHENI, Yesid ASAFF, Acires DIAS

Transport Problems, Volume 10 , ISSUE SE, 37–46

Article | 31-July-2018

PREDICTION AND VALIDATION FOR THE AERODYNAMIC NOISE OF HIGH-SPEED TRAIN POWER CAR

The aerodynamic noise of high-speed train power car was investigated in this article. The full-scale power car was first modeled, and the external steady flow field was computed by a realizable k-ε turbulence model. The aerodynamic noise sources of the power car surface and the external transient flow field were then calculated by broadband noise source model and large eddy simulation (LES) model, respectively. The static pressures on the train surface were obtained from the results of

Shi-jie Jiang, Song Yang, Dan Wu, Bang-Chun Wen

Transport Problems, Volume 13 , ISSUE 2, 91–102

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