June 9, 2019
Publications
>
Article
Green

Pressure Bifurcation Phenomenon on Supersonic Blowing Trailing Edges

Publicated to: AIAA JOURNAL. 57 (1): 153-164 - 2019-01-01 57(1), DOI: 10.2514/1.J057056

Authors:

Martinez-Cava, Alejandro; Wang, Yinzhu; de Vicente, Javier; Valero, Eusebio
[+]

Affiliations

Tech Univ Madrid, Sch Aeronaut & Space Engn, Appl Math, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain - Author
Tech Univ Madrid, Sch Aeronaut & Space Engn, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain - Author

Abstract

Turbine blades operating in transonic-supersonic regime develop a complex shock wave system at the trailing edge: a phenomenon that leads to unfavorable pressure perturbations downstream and can interact with other turbine stages. Understanding the fluid behavior of the area adjacent to the trailing edge is essential in order to determine the parameters that have influence on these pressure fluctuations. Colder flow, bled from the high-pressure compressor, is often purged at the trailing edge to cool the thin blade edges, affecting the flow behavior and modulating the intensity and angle of the shock waves system. However, this purge flow can sometimes generate nonsymmetrical configurations due to a pressure difference that is provoked by the injected flow. In this work, a combination of Reynolds-averaged Navier-Stokes simulations and a global stability analysis is employed to explain the physical reasons of this flow bifurcation. By analyzing the features that naturally appear in the flow and become dominant for some value of the parameters involved in the problem, an antisymmetrical global mode, which is related to the sudden geometrical expansion of the trailing-edge slot, is identified as the main mechanism that forces the changes in the flow topology.
[+]

Keywords

BaseCylinderDynamic-mode decompositionEjectionFlowsGlobal stability analysisInstabilityWake

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal AIAA JOURNAL due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Aerospace Engineering.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-25:

  • WoS: 8
  • Scopus: 9
[+]

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 2026-04-25:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 5.
  • 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: 5 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/87321/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 666
  • Downloads: 352
[+]

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 (MARTINEZ-CAVA AGUILAR, ALEJANDRO) and Last Author (VALERO SANCHEZ, EUSEBIO).

the authors responsible for correspondence tasks have been MARTINEZ-CAVA AGUILAR, ALEJANDRO and VICENTE BUENDIA, JAVIER DE.

[+]

Awards linked to the item

This research was carried out under the project Stability and Sensitivity Methods for Industial Design, which received funding from the European Union Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant agreement no. 675008. The authors thankfully acknowledge the computer resources and technical assistance provided by the Centro de Supercomputacion y Visualizacion de Madrid (CeSViMa).
[+]