July 9, 2020
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Article

Sensitivity gradients of surface geometry modifications based on stability analysis of compressible flows

Publicated to: Physical Review Fluids. 5 (6): 63902- - 2020-06-18 5(6), DOI: 10.1103/PhysRevFluids.5.063902

Authors:

Martinez-Cava, A; Chávez-Modena, M; Valero, E; de Vicente, J; Ferrer, E
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Affiliations

Univ Politecn Madrid, Ctr Computat Simulat, E-28660 Madrid, Spain - Author
Univ Politecn Madrid, ETSIAE, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain - Author

Abstract

We derive a discrete framework for the calculation of eigenvalue sensitivity to geometric deformations. We apply the technique to the steady compressible Navier-Stokes and Reynolds-averaged Navier-Stokes (RANS) flows. The analysis enables one to control (reduce or increase) the amplification rate or frequency associated to the least stable global mode, which is identified using stability analysis. A methodology using a discrete framework is proposed, allowing one to recover the gradients in compressible and turbulent flows. The potential of the resulting shape gradients is evaluated on the well-known circular cylinder flow problem and on a RANS turbulent flow scenario to control the buffet onset on a NACA0012 airfoil. The predicted deformations show excellent performance on the stabilization or excitation, and frequency control, of the global modes and for the two cases tested.
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Keywords

2nd-order sensitivityInstabilityPassive controlReceptivityShape optimizationTransonic buffetUnsteadinessWake

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Physical Review Fluids 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, 2020, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Fluid Flow and Transfer Processes. Notably, the journal is positioned above the 90th percentile.

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: 9
  • WoS: 5
  • Scopus: 5
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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: 11.
  • 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: 11 (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: 3.
  • The number of mentions on the social network X (formerly Twitter): 4 (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/87330/

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: 409
  • Downloads: 472
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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 (MARTINEZ-CAVA AGUILAR, ALEJANDRO) and Last Author (FERRER VACCAREZZA, ESTEBAN).

the author responsible for correspondence tasks has been CHAVEZ MODENA, MIGUEL.

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Awards linked to the item

This research has been funded by the Ministry of Innovation of Spain under the project Simulaciones de alta precision y modelizacion para diseno optimo aeronautico (SIMOPAIR) (Project No. REF: RTI2018-097075-B-I00).
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