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This research has been funded by the Spanish Ministry of Science and Innovation under research contract PID2019-109619GB-C21, and gratefully acknowledges this support.

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Barrero Gil, AntonioAuthor

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September 1, 2024
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Flow mixing enhancement by crossflow induced oscillations of an open semicircular cylinder

Publicated to:Experimental Thermal And Fluid Science. 159 111283- - 2024-12-01 159(), DOI: 10.1016/j.expthermflusci.2024.111283

Authors: Barrero-Gil, A

Affiliations

Univ Politecn Madrid, Sch Aeronaut, Aerosp Prop & Fluid Mech Dept, Plaza Cardenal Cisneros 3, E-28040 Madrid, Spain - Author

Abstract

Flow-induced vibrations of a rigid prism with an open semicircular cross section, supported elastically, were experimentally studied in a free-surface water channel. The objective of the study was to explore the prism's potential to promote flow mixing in its wake and simultaneously harvest mechanical energy from the incoming flow. The mechanical dimensionless parameters, namely the mass ratio and damping, were kept constant, focusing primarily on the influence of flow speed (or reduced velocity U * ) on mixing efficiency and energy extraction. The following findings were obtained: (i) a clear correlation exists between the efficiency of mixing and the efficiency of energy extraction, (ii) mixing efficiency is higher in the near wake and gradually decreases downstream, and (iii) mixing efficiency scales with A*(f*/U*)Z, * ( f * / U * ) Z , where A* * and f* * represent the dimensionless amplitude and frequency of the prism's oscillation, respectively. This indicates that flow mixing is directly influenced by the transverse acceleration of the prism and the unperturbed flow speed. Then, maximum mixing efficiency is expected to be achieved when high oscillation amplitudes occur at low reduced velocities which suggest that synchronization of vortex shedding contributes to enhance flow mixing.

Keywords

AccelerationChanneCross flowsEnergy extractionExtractionFlow mixingFlow speedFlow-mixingGallopinGallopingHeat-transfer enhancementInduced vibrationMixingMixing efficiencyMixing enhancementOscillating flowPrismsReduced velocitySemi-circular cylindersSurface watersVibrations (mechanical)Vortex flowVortex induced vibrationVortex-induced vibrationsWakes

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Experimental Thermal And Fluid Science 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 7/41, thus managing to position itself as a Q1 (Primer Cuartil), in the category Physics, Fluids & Plasmas.

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 2025-10-22:

  • 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: 1 (PlumX).

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/84641/

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: 139
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