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The authors would like to thank the CONACYT (Consejo Nacional de Ciencia y Tecnologia) of Mexico for supporting this work through a scholarship (doctoral grant number 486869).

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Gonzalez-Martinez, EzequielAuthorRodriguez-Fernandez, ManuelAuthor

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June 9, 2019
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A methodology for the prediction of the sonic boom in tunnels of high-speed trains

Publicated to:Journal Of Sound And Vibration. 446 37-56 - 2019-04-28 446(), DOI: 10.1016/j.jsv.2019.01.016

Authors: Manuel Rivero, Juan; Gonzalez-Martinez, Ezequiel; Rodriguez-Fernandez, Manuel;

Affiliations

Univ Politecn Madrid, Sch Aeronaut ETSIAE, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain - Author

Abstract

The present study focuses in the propagation and deformation of the first compression wave generated when a high speed train enters a tunnel. This first wave is a determining factor in shock wave formation inside the tunnel, and therefore in sonic boom phenomena. This is modelled with the one-dimensional equations for the flow in a tube, and an analogy that relates a piston inside a tube with the entering train, both opening the door to an algebraic formulation that delimits the problem of shock formation. The model is represented in a characteristic form to find the relation between the distance where the pressure wave becomes a shock wave (named the regression distance) and the parameters that define the initial wave profile, namely the maximum pressure increment and the maximum pressure gradient downstream the entry portal. Later, steady and unsteady wall friction and heat transfer effects are analysed. Differences between the regression distance for the cases with friction and heat transfer and without them, seems to be delimited, that makes the algebraic formulation suited for fast decisions at the time of conceptual design of high-speed lines. Model validation with more complex models and experimental data is provided. (C) 2019 Elsevier Ltd. All rights reserved.

Keywords

AlleviationCompression waveGenerationHigh-speed trainHoodMethod of characteristicsMicro-pressure waveModelNoseShock waveSonic boomTrain aerodynamicsTunnel aerodynamics

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Sound And Vibration due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position 4/32, thus managing to position itself as a Q1 (Primer Cuartil), in the category Acoustics.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 3.78, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-09, the following number of citations:

  • WoS: 3
  • Scopus: 19

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-09:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 16 (PlumX).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Manuel Rivero, Juan) and Last Author (RODRIGUEZ FERNANDEZ, MANUEL).

the author responsible for correspondence tasks has been Manuel Rivero, Juan.