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Journal of Flow Visualization and Image Processing

Erscheint 4 Ausgaben pro Jahr

ISSN Druckformat: 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

VISUALIZATION OF FLY ASH PARTICLE TRAJECTORIES WITHIN A BOILER TUBE BANK MODEL

Volumen 3, Ausgabe 1, 1996, pp. 91-107
DOI: 10.1615/JFlowVisImageProc.v3.i1.70
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ABSTRAKT

The flow of two phase fly ash/air mixtures through a boiler tube bank within a specialized wind tunnel has been studied. Flow visualization work included photography of the particles illuminated by either laser sheets or synchronized flash units. Fluid flow structures such as trailing vortices in the wake of individual tubes may be identified from the distribution of the ash particles. Measurements of individual particle streaks on the photographs were used to determine the velocity distribution of the solid phase. Restitution coefficients for fly ash striking the steel tubes were calculated by comparing velocity magnitudes for particles prior to their impact and those following their rebound. These restitution ratios provide an indication of the kinetic energy exchange between the ash and the tube surface. The results allow an appreciation of the dependence of the restitution coefficients on the angle of impact. This was further explored with the study of ash streams impacting angled plates. The correlation of these coefficients with impact angles may be incorporated in mathematical models of both the motion of two phase flow and tube wear rates due to ash erosion.

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