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Analysis of institutional authors

Serrano, JrAuthorNavarro, RAuthorGarcía-Cuevas, LmAuthor

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October 30, 2024
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Contribution to Tip Leakage Loss Modeling in Radial Turbines Based on 3D Flow Analysis and 1D Characterization

Publicated to: INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW. 78 108423- - 2019-01-01 78(), DOI: 10.1016/j.ijheatfluidflow.2019.108423

Authors:

Serrano, J.R.; Navarro, Roberto; García-Cuevas González, Luis Miguel; Inhestern, Lukas Benjamin
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Affiliations

Univ Politecn Valencia, CMT Motores Tenn - Author

Abstract

The characterization of tip leakage flow plays an important role for one-dimensional loss modeling and design in radial turbine research. Tip leakage losses can be expressed as function of fluid momentum and mass flow passing through the tip gap. Friction-driven flow and contrariwise oriented pressure gradient-driven flow are highly coupled. However, these numbers are mostly unknown and dependent on tip gap geometry and turbine running condition. Based on a commonly used definition of a non-dimensional tip leakage momentum ratio, a novel correlation has been derived. This allows a consistent characterization for variable tip gap sizes over a wide range of operating conditions. The correlation has been validated by means of CFD data with high variety in reduced speed tip gap geometry and expansion ratios. Results of the novel number show significant improvements of quantitative and qualitative results over a wide range of running conditions in comparison to existing correlations. Furthermore, correlations for tip leakage velocities, that can easily be used in one-dimensional models, have been derived. Finally, it has been demonstrated, that the influence of inlet flow momentum on the tip leakage flow can be analyzed with presented correlations.
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Keywords

CfdComputational fluid dynamicsDesignModelingModelsMomentumOff designsOff-designOne-dimensional modelOperating conditionPredictionRadial turbine simulationRadial turbinesRunning conditionsTip leakageTip leakage flowTip leakage lossesTurbinesTurbochargerTurbocharger turbine

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW 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 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 2026-04-02:

  • WoS: 13
  • Scopus: 17
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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 2026-04-02:

  • 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: 17 (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: http://hdl.handle.net/10251/150643
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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 (Serrano Cruz, José Ramón) and Last Author (Inhestern, LB).

the author responsible for correspondence tasks has been Inhestern, LB.

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Awards linked to the item

The work has been partially supported by FEDER and the Spanish Ministry of Economy and Competitiveness through grant number TRA2016-79185-R. The authors would also like to acknowledge the Research and Development Aid Program PAID-01-16 of the Universitat Politecnica de Valencia, Spain.
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