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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

Indexed in

MEASUREMENT OF THE EVOLVING LARGE EDDIES IN AXISYMMETRIC JETS FROM TRAVERSING CAMERA BY USING THE CROSS-CORRELATION TECHNIQUE

Volume 5, Issue 2, 1998, pp. 105-113
DOI: 10.1615/JFlowVisImageProc.v5.i2.20
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ABSTRACT

To investigate the evolving process of the large structures in turbulence, an image-processing technique with a camera traversing at mean axial flow velocity was developed and applied to vortex rings and axisymmetric jets. In order to obtain the complete velocity profiles in one run, the traversing unit for a CCD camera was controlled by a personal computer to synchronize the traversing rate and the eddy motion. Video signals from the CCD camera were recorded continuously by a VCR with two binary bar codes: one to identify the video field, and the other to specify the camera position and the traversing rate. The cross-correlation technique was employed to obtain two-dimensional velocity distributions from the recorded images. From successive maps of instantaneous velocity and vorticity distributions, the motion of large eddies (vortex pairing, entrainment) that cannot be measured quantitatively by conventional techniques can be dynamically revealed using a traversing camera.

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