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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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INVESTIGATION OF DUAL COLOR BEAM SCANNING (DCBS) PIV SYSTEM

Volume 28, Issue 2, 2021, pp. 1-41
DOI: 10.1615/JFlowVisImageProc.2021033551
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ABSTRACT

The aim of the work is to develop a low-cost particle image velocimetry (PIV) system with scanning-based illumination (instead of the pulsed illumination used in the conventional PIV). Illumination consists of scanning of two different color (red and green) laser beams, with a known time difference between them, through the region of interest within the flow field. A combination of a rotating plane mirror and a stationary parabolic mirror is used to make the beam scan through the test section to illuminate the flow, and a color camera is used to capture illuminated seeded particles in the flow. The main objective of this paper was to develop a theoretical framework for the DCBS PIV system considering the spatial variation in the time interval Δt between two illuminations. Spatial variation in Δt occurs due to the nonuniform scanning speeds of laser beams. Based on the displacement field (obtained from cross-correlation of separated red and green color particle images) and the Δt distribution, the velocity field can be obtained. The developed theoretical framework is used to analyze the performance of the DCBS PIV system for different flow problems.

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