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Journal of Flow Visualization and Image Processing

Publicou 4 edições por ano

ISSN Imprimir: 1065-3090

ISSN On-line: 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

VISUALIZATION OF OSCILLATORY FLOW IN TAPERED TUBE

Volume 4, Edição 3, 1997, pp. 307-315
DOI: 10.1615/JFlowVisImageProc.v4.i3.100
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RESUMO

To clarify the flow mechanism that could enhance the gas exchange in lung system, the oscillatory flow fields in some types of tapered tubes were visualized by a laser light sheet method. The light sheet was made with a polygon-mirror scanning system of a laser beam. In the tapered section, it was observed that the vortex sheet of a Kelvin-Helmholtz type was generated at the outer edge of the tube-wall boundary layer, or that the flow separated at the diverging region and the resultant shear layer rolled up into vortices. The observed flow patterns could be classified based on the Reynolds number defined by the Stokes layer thickness and the mean velocity amplitude. The flow features were discussed from the viewpoint of flow instability related to the adverse pressure gradient in the tube flow field.

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