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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

FLOW VISUALIZATION OF FOUR-INLET DUCTED ROCKET ENGINE CONFIGURATIONS

Volumen 3, Ausgabe 1, 1996, pp. 79-90
DOI: 10.1615/JFlowVisImageProc.v3.i1.60
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ABSTRAKT

A water flow visualization facility was constructed in order to investigate the mixing processes inside of four-inlet ducted rocket engines (DRE) with various flow rates and geometries. The observed flow fields were documented with video and conventional photography so that relationships between various geometric/flow parameters and the flow field behavior could be obtained. Flow visualization was achieved by seeding the flow field with polystyrene spheres and illuminating them with laser sheet lighting. Images revealed complex mixing patterns within the dome head region of the combustors that exhibited a strong dependence on dome height, momentum ratios, and inlet flow angles. For large inlet flow angles on the same-station combustors, it was shown that the geometries intrinsically direct a significant portion of the inlet flow toward the dome head region without the need for diverter devices. The resulting dome-region flow field contains two distinct recirculation patterns shown to be dependent on the momentum ratio and inlet flow inlet angle. These parameters also strongly affect the existence and strength of transport mechanisms between the fore and aft combustor segments. By designing a combustor accordingly, it may be possible to take advantage of one or both of the operating conditions resulting in a combustor with improved combustion properties.

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