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Atomization and Sprays
Editor-in-Chief Europe: Günter Brenn (open in a new tab)
Editor-in-Chief Americas: Marcus Herrmann (open in a new tab)
Редактор-основатель: Norman Chigier (open in a new tab)

Выходит 12 номеров в год

ISSN Печать: 1044-5110

ISSN Онлайн: 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

END OF INJECTION PROCESS IN A SINGLE-HOLE DIESEL INJECTOR

Том 28, Выпуск 1, 2018, pp. 23-45
DOI: 10.1615/AtomizSpr.2018020100
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Краткое описание

The end of injection processes in a single-hole high-pressure diesel injector is investigated experimentally and numerically. Experimental measurements are performed using a laser-based backlit imaging technique. Numerical investigation of in- and near-nozzle fluid dynamics is conducted in a Eulerian framework using a volume-of-fluid interface capturing technique integrated with large eddy simulation turbulence modeling. An incompressible noncavitating and a compressible cavitating model are employed to gain a clearer understanding of the nozzle air ingestion mechanism at the end of injection. In the compressible model, a basic cavitation model is allowing liquid fuel to flash to gas at the fuel vapor pressure. The results show that upon needle valve closure, the high-energy core fluid maintains outward flow but the peripheral flow has reversed, as required by continuity, thus ingesting chamber air into the nozzle. The remaining unstable flow forms an asymmetry enhancing the air ingestion. Numerical results of the incompressible noncavitating model show a single bubble of chamber gas remains embedded within the liquid in the nozzle hole only after velocities have largely dissipated. The results of the compressible cavitating model demonstrate how chamber gas is entrained into the sac volume through the air passage previously generated by hydraulic flip. These results provide an explanation of a mechanism for air ingestion at the end of injection recently described using X-ray imaging. This mechanism also provides a possible explanation for the presence of air within the emerging jet of subsequent injections.

ЦИТИРОВАНО В
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  2. Bai Yun, Chen Zhaoyang, Dou Wei, Kong Xiangdong, Yao Jing, Ai Chao, Zhai Fugang, Zhang Jin, Yang Liu, Pressure Fluctuation Characteristics of High-Pressure Common Rail Fuel Injection System, in Diesel Engines and Biodiesel Engines Technologies, 2022. Crossref

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