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Journal of Flow Visualization and Image Processing

年間 4 号発行

ISSN 印刷: 1065-3090

ISSN オンライン: 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

2D-PTV MEASUREMENT OF EXPANDING CONCENTRIC ANNULAR FLOW WITH A ROTATING INNER WALL

巻 17, 発行 3, 2010, pp. 243-254
DOI: 10.1615/JFlowVisImageProc.v17.i3.50
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要約

The turbulent flow field in an expanding concentric annular flow passage with a rotating inner wall was measured by using 2-Dimensional Particle Tracking Velocimetry (2D-PTV). In this study, two different shapes, concave and convex types, were examined in rotating condition. The inlet through-flow Reynolds number based on the twice height of the flow passage and the mean flow velocity was set at a constant value of 1000. The Taylor number based on the inner wall radius of 45°. location from the origin and the angular velocity of the inner wall was set at a constant value of 0 and 4000. In all cases, flow separation occurred in the inlet region, which was caused by flow inertia. Furthermore, in the rotating concave passage, the flow separation area reached the downstream region, and a high-speed flow along the inner wall occurred for centrifugal force of the rotating inner wall. As a result, due to a high-speed flow along the inner wall, reverse flow from the exit part of the outer wall side occurred, which could be understood by mass conservation. In the both rotating flow passages, the turbulent kinetic energy of the visualized plane in the downstream region was increased by the shear stress due to the rotating inner wall and the centrifugal force.

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