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Journal of Flow Visualization and Image Processing

Published 4 issues per year

ISSN Print: 1065-3090

ISSN Online: 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

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ON THE BEHAVIOR OF POD MODES OF THE FLOW PAST A PERFORATED PLATE

Volume 10, Issue 1-2, 2003, 14 pages
DOI: 10.1615/JFlowVisImageProc.v10.i12.60
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ABSTRACT

The temporal behavior of coherent structures of turbulence in the case of a multiple interacting turbulent jet flow developing downstream from a perforated plate is investigated. The Proper Orthogonal Decomposition (POD) is applied to extract the coherent motions from a turbulent flow database of numerical nature obtained with the use of a finite-element computational code for the numerical integration of the Navier–Stokes equations at Re = 13300; for turbulence modeling the Large Eddy Simulation (LES) approach is followed and the Smagorinsky Sub Grid-Scale model (SGS) is used. The three-dimensional time-dependent velocity field past the perforated plate is computed and 400 time steps of the turbulent statistically steady state are considered for the decomposition of the flow field onto two appropriate computational subdomains. "Reduced" velocity fields, each reflecting the contribution of the first four most energetic POD modes containing up to 96.24% and 95.82% of the turbulent kinetic energy of the originary flow field, respectively, are reconstructed. Results are presented in terms of temporal evolution of the turbulent kinetic energy of the four most energetic eigenmodes of each subdomain, showing, in both cases, a rather regular temporal dynamics of the coherent structures (the POD modes) through different phases of the turbulent activity.

CITED BY
  1. Alfonsi Giancarlo, Lauria Agostino, Primavera Leonardo, The Field of Flow Structures Generated by a Wave of Viscous Fluid Around Vertical Circular Cylinder Piercing the Free Surface, Procedia Engineering, 116, 2015. Crossref

  2. Alfonsi Giancarlo, Numerical Simulations of Wave-Induced Flow Fields around Large-Diameter Surface-Piercing Vertical Circular Cylinder, Computation, 3, 3, 2015. Crossref

  3. Ciardullo Giuseppe, Primavera Leonardo, Ferrucci Fabrizio, Carbone Vincenzo, Lepreti Fabio, Study of Turbulence Associated with the Faraji Cyclone, Climate, 10, 2, 2022. Crossref

  4. Singh Abhinav, Narasimhamurthy Vagesh D., Perforation effects on the wake dynamics of normal flat plates, Journal of Fluid Mechanics, 947, 2022. Crossref

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