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Journal of Flow Visualization and Image Processing

Publicado 4 números por año

ISSN Imprimir: 1065-3090

ISSN En Línea: 1940-4336

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: 0.6 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.6 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: 0.00013 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: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

Indexed in

OSCILLATIONS AND VORTEX-INDUCED VIBRATIONS OF A TETHERED SPHERE IN A FLOW

Volumen 12, Edición 1, 2005, pp. 29-44
DOI: 10.1615/JFlowVisImageProc.v12.i1.40
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SINOPSIS

The behavior of a tethered sphere in a steady uniform flow has been investigated for two different configurations. Firstly, we consider a flow parallel to the tether in a small vertical water channel and, secondly, we perform experiments in a wind tunnel where the flow is perpendicular to the tether. Above a critical value Uc of the free-stream velocity, the sphere exhibits oscillations induced by the periodic vortex shedding. When the flow is parallel to the tether, new modes of oscillations of the sphere along circular or elliptic trajectories have been observed. The transition from steady to oscillatory movement of the sphere is shown to be hysteretic. The frequency and the amplitude of the oscillations, always locked to the natural frequency of the pendulum constituted by the tethered sphere, have been measured as a function of the reduced velocity. When the flow is perpendicular to the tether, the trajectories of the sphere have been recorded. The amplitude and frequency of the movement as well as the spectral density of the fluctuations of the location have been deduced by image processing.

CITADO POR
  1. Orchini Alessandro, Kellay Hamid, Mazzino Andrea, Galloping instability and control of a rigid pendulum in a flowing soap film, Journal of Fluids and Structures, 56, 2015. Crossref

  2. Negri Marco, Mirauda Domenica, Malavasi Stefano, An analysis method of the vortex-induced vibrations of a tethered sphere, Meccanica, 55, 10, 2020. Crossref

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