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International Journal of Fluid Mechanics Research

Publication de 6  numéros par an

ISSN Imprimer: 2152-5102

ISSN En ligne: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

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EFFECT OF SYNTHETIC JET PARAMETERS ON CONTROLLED FLOW OVER AN AIRFOIL

Volume 44, Numéro 5, 2017, pp. 387-408
DOI: 10.1615/InterJFluidMechRes.2017018329
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RÉSUMÉ

Flow control for performance enhancement over airfoils (both stall and load enhancement) has become an increasingly important topic. This numerical work describes the characteristics of flow control using synthetic jets over a NACA 0015 airfoil at a Reynolds number of 8.96 × 105 (based on the chord length and free-stream velocity) and at 20° angle of attack (wherein the flow is separated). A range of synthetic jet parameters were chosen to visualize their effects on the controlled flow. Analysis of key flow parameters indicate that the synthetic jet is efficient in increasing the lift coefficient while simultaneously reducing the drag coefficient, more so for larger jet amplitudes and at smaller angles of jet injection. A regression model for predicting the flow parameters is also specified. Toward the end of the study, a new parameter−the differential time of suction and blowing−was identified and its effect on the flow dynamics was observed. While the time modulation offers some benefits, it is the opinion of the authors that the benefits are too marginal to justify the implementation of such a system. This work serves as a platform to qualitatively and quantitatively understand the effects of the jet parameters on the separated flow over the airfoil, by understanding the flow parameters and structures.

CITÉ PAR
  1. Cao Shengli, Li Ya, Zhang Jiazhong, Deguchi Yoshihiro, Lagrangian analysis of mass transport and its influence on the lift enhancement in a flow over the airfoil with a synthetic jet, Aerospace Science and Technology, 86, 2019. Crossref

  2. Fu Yunhao, Shi Jingping, Huang Degang, Zhang Weiguo, Influence of Continuous Jet at the Lower Surface on Airfoil Aerodynamic Performance, in Advances in Guidance, Navigation and Control, 644, 2022. Crossref

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