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Impact on the Sustainable Development Goals (SDGs)

Analysis of institutional authors

Gatón-Pérez, PedroAuthorBraun, MatíasCorresponding AuthorPrasad Choudhury, SibaAuthorMuntean, VictorAuthorMartinez-Ruiz, DanielAuthor

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July 31, 2025
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Mitigation of thermoacoustic instabilities via porous plugs

Publicated to: Journal Of Fluid Mechanics. 1013 A25- - 2025-06-18 1013(), DOI: 10.1017/jfm.2025.10257

Authors:

Gaton-Perez, Pedro; Braun, Matias; Prasad Choudhury, Siba; Muntean, Victor; Martinez-Ruiz, Daniel
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Affiliations

Univ Nebrija, UAN, Res Grp GREEN, Madrid 28015, Spain - Author
Univ Politecn Madrid, ETSIAE, Plaza Cardenal Cisneros 3, Madrid 28040, Spain - Author

Abstract

The interaction between the dynamics of a flame front and the acoustic field within a combustion chamber represents an aerothermochemical problem with the potential to generate hazardous instabilities, which limit burner performance by constraining design and operational parameters. The experimental configuration described here involves a laminar premixed flame burning in an open-closed slender tube, which can also be studied through simplified modelling. The constructive coupling of the chamber acoustic modes with the flame front can be affected via strategic placement of porous plugs, which serve to dissipate thermoacoustic instabilities. These plugs are lattice-based, 3-D-printed using low-force stereolithography, allowing for complex geometries and optimal material properties. A series of porous plugs was tested, with variations in their porous density and location, in order to assess the effects of these variables on viscous dissipation and acoustic eigenmode variation. Pressure transducers and high-speed cameras are used to measure oscillations of a stoichiometric methane-air flame ignited at the tube's open end. The findings indicate that the porous medium is effective in dissipating both pressure amplitude and flame-front oscillations, contingent on the position of the plug. Specifically, the theoretical fluid mechanics model is developed to calculate frequency shifts and energy dissipation as a function of plug properties and positioning. The theoretical predictions show a high degree of agreement with the experimental results, thereby indicating the potential of the model for the design of dissipators of this nature and highlighting the first-order interactions of acoustics, viscous flow in porous media and heat transfer processes.
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Keywords

Affordable and clean energyCombustioFlamInstability controlPorous mediaVibratory instability

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Fluid Mechanics 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, 2025, it was in position 5/41, thus managing to position itself as a Q1 (Primer Cuartil), in the category Physics, Fluids & Plasmas.

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 2025-12-21:

  • Google Scholar: 1
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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 2025-12-21:

  • 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: 3.
  • 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: 4 (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).
Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 7 - Affordable and clean energy, with a probability of 62% according to the mBERT algorithm developed by Aurora University.
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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 (GATON PEREZ, PEDRO) and Last Author (MARTINEZ RUIZ, DANIEL).

the author responsible for correspondence tasks has been BRAUN, MATIAS NICOLAS.

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Awards linked to the item

This work was funded by the Regional Government of Madrid and by MCIN of Spain with funding from the European Union NextGenerationEU (PRTR-C17.I1) and through project TED2021-129446B-C43 funded by MCIN/AEI/10.13039/501100011033.
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