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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

EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST A CYLINDER

Volumen 16, Edición 4, 2009, pp. 353-366
DOI: 10.1615/JFlowVisImageProc.v16.i4.60
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SINOPSIS

The main emphasis of the paper is placed on the influence of an active method of flow control, as a synthetic jet, on a flow field around a cylinder with an aspect ratio of 1.8. It summarizes the influence of basic factors that affect the design of the synthetic jet actuator, particularly the Strouhal number − nondimensional frequency (F+), Stokes number of the output orifice (St), Reynolds number (Re), momentum coefficient (cμ), and a position of the output orifice of the synthetic jet actuator. The actuator is positioned in front of the boundary layer separation. The principle of flow control with and without amplitude modulation was used in order to generate a lower actuating frequency. An amount of input energy of the actuators that influences the flow filed was measured. A change of lift and drag coefficients was calculated from the measured pressure distribution by the model. The alternatives with and without flow control are compared through the relation of the saved up and added energy.

REFERENCIAS
  1. J. C. Lin, Review of research on low-profile vortex generators to control boundary layer separation.

  2. A. Glezer and M. Amitay, Synthetic jets.

  3. V. Uruba, On a synthetic jet flow.

  4. I. Wygnanski, Boundary layer and flow control by periodic addition of momentum.

  5. A. Seifert, T. Bachart, D. Koss, M. Shepshelovitch, and I. Wygnanski, Oscillatory blowing: a tool to delay boundary-layer separation.

  6. M. Amitay, A. Honohan, M. Trautman, and A. Glezer, Modification of the aerodynamic characteristics of bluff bodies using fluidic actuators.

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  8. W. P. Liu and G. H. Brodie, A demonstration of MEMS-based active turbulence transitioning.

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  11. D. Greenblatt and I. J. Wygnanski, The control of flow separation by periodic excitation.

CITADO POR
  1. DeMauro E. P., Leong C. M., Amitay M., Modification of the near wake behind a finite-span cylinder by a single synthetic jet, Experiments in Fluids, 53, 6, 2012. Crossref

  2. DeMauro E. P., Leong C. M., Amitay M., Interaction of a synthetic jet with the flow over a low aspect ratio cylinder, Physics of Fluids, 25, 6, 2013. Crossref

  3. Matejka Milan, Experimental Results of Synthetic Jet Wind Tunnel Tests, in Recent Progress in Flow Control for Practical Flows, 2017. Crossref

  4. Matejka Milan, Introduction to the Synthetic Jet Flow Control and Drag Reduction Techniques, in Recent Progress in Flow Control for Practical Flows, 2017. Crossref

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