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Atomization and Sprays

Publicado 12 números por año

ISSN Imprimir: 1044-5110

ISSN En Línea: 1936-2684

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: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 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: 0.3 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: 0.00095 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: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

ANALYSIS OF TRANSIENT LIQUID AND VAPOR PHASE PENETRATION FOR DIESEL SPRAYS UNDER VARIABLE INJECTION CONDITIONS

Volumen 21, Edición 6, 2011, pp. 503-520
DOI: 10.1615/AtomizSpr.2011003721
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SINOPSIS

The objective of this study is to investigate liquid length and vapor penetration for diesel sprays under highly transient injection conditions. High-speed Mie-scattering and shadowgraphy imaging of the spray evolution in an ambient of nitrogen are performed in a slow rotational optically accessible engine. Liquid length and vapor penetration were obtained for both single- and multiple-pulse (pilot-main and pilot-main-post) cases in a seven-hole nozzle that performs real engine injection strategies. In-cylinder temperature and density were simulated to reproduce operating conditions of a real engine at low load. Results show that liquid and vapor penetration coincide at the beginning of each injection pulse. For long injection pulses, liquid length can stabilize after some time, while penetration keeps growing. However, for short pulses liquid length has a highly transient evolution. Measurements were compared to calculations from a one-dimensional spray model that can predict spray evolution under highly transient conditions. No significant differences compared to experimental data were found in terms of penetration. Regarding liquid length, major differences were found in the opening and closing transients. Multiple injection analysis of the interaction between pulses was performed by means of the model results; previously single-pulse cases were used to calibrate the model.

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