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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 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

CHARACTERISTICS OF ADHESION DIESEL FUEL ON AN IMPINGEMENT DISK WALL. PART 3: AMBIENT PRESSURE EFFECT

巻 24, 発行 7, 2014, pp. 625-650
DOI: 10.1615/AtomizSpr.2014010224
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要約

Wall impingement of fuel spray is known as the main contributor to DI diesel engines with small combustion cavities. Recently, high boost intake air charging has been adopted in the diesel engine for higher power and better performance including low emissions. Consequently, the compressed air density in the cylinder is becoming high, and it seems that this high density surrounding air has a greater effect on the impingement behavior of fuel sprays. Therefore, under high gas density conditions, precise investigation of impingement fuel sprays is needed. In this paper, the effect of ambient pressure and injection pressure on the adhered fuel mass of normal impingement diesel sprays was investigated experimentally. Nonevaporated diesel spray was injected into a high-pressure vessel, and the spray impinged to a flat wall was placed in the vessel. The ambient pressure in the vessel was set from 0.1 to 4 MPa. The mass of the disk with adhered fuel was measured using an electronic balance, and the fuel mass adhered on its surface was evaluated. As a result, it was found that the adhered mass ratio decreased with an increase of ambient pressures from 0.1 to 1 MPa. However, at ambient pressure over 1.0 MPa, the adhered mass ratio became almost constant for a condition of30 mm impingement distance but it still decreased under longer impingement distances such as 90 mm. Under long impingement distances, adhered fuel mass in high ambient pressure conditions such as 4 MPa was half of that under 1 MPa conditions. Moreover, the height of the impingement spray changed in various ways under various ambient pressures. It had partial correlation with adhered mass ratio. The result also shows that adhered mass was greatly affected by the Weber number which was obtained with impingement velocity and the Sauter mean diameter of the spray. Finally, the jet number was introduced to summarize the effects of ambient pressure and impingement Weber number on adhered mass ratio.

によって引用された
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