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Analysis of institutional authors

Broatch, ACorresponding AuthorNavarro, RAuthorGarcía-Tíscar, JAuthorRamírez, FnAuthor

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October 11, 2024
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Evaluation of different FW-H surfaces and modal decomposition techniques for the acoustic analysis of UAV propellers through detached eddy simulations

Publicated to:Aerospace Science And Technology. 146 108956- - 2024-03-01 146(), DOI: 10.1016/j.ast.2024.108956

Authors: Broatch, A; Navarro, R; Garcia-Tiscar, J; Ramirez, F N

Affiliations

Univ Politecn Valencia, CMT Clean Mobil & Thermofluids, Camino Vera - Author

Abstract

Noise has been a much -studied problem since the beginning of aviation because it is one of the main factors affecting its social acceptance. In recent years, the expansion of Unmanned Aerial Vehicles (UAVs) has led to increased research on propellers working at low Reynolds numbers, which are typically found in this type of aircraft. This paper begins with an Improved Delayed Detached Eddy Simulation (IDDES) of a commercial nine -inch UAV propeller. The Ffowcs-Williams and Hawkings (FW-H) approach is then used to compute the acoustic propagation from the simulation results. Both aerodynamic performance and acoustic signature results in hover flight are validated experimentally. Then, the influence of different FW-H permeable surfaces is methodologically evaluated, finding that magnified SPL values at low frequencies are obtained when using cylinders due to vortical structures passing through the bottom cap, and that the use of spheres appears to be the most consistent approach. Once a validated, time -resolved flow field has been obtained, different datadriven modal decomposition techniques, such as Proper Orthogonal Decomposition (POD) and Dynamic Mode Decomposition (DMD), are applied to the 3D pressure field. This enables a better understanding of the propeller acoustic modes and the assessment of the suitability of each technique for this problem, especially when Reduced Order Models (ROMs) are sought.

Keywords

CfdDmdFlow recirculationNoiseOpenfoamPodUnmanned aerial vehicles

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Aerospace Science And Technology 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, 2024 there are still no calculated indicators, but in 2023, it was in position 6/52, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Aerospace.

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 2025-07-08:

  • WoS: 5
  • Scopus: 5

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 2025-07-08:

  • 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: 12 (PlumX).

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

    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 (Broatch Jacobi, Jaime Alberto) and Last Author (Ramírez, Federico Nahuel).

    the author responsible for correspondence tasks has been Broatch Jacobi, Jaime Alberto.