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Atomization and Sprays

Erscheint 12 Ausgaben pro Jahr

ISSN Druckformat: 1044-5110

ISSN Online: 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

MODELING HEAT TRANSFER TO IMPINGING FUEL SPRAYS IN DIRECT-INJECTION ENGINES

Volumen 5, Ausgabe 2, 1995, pp. 213-242
DOI: 10.1615/AtomizSpr.v5.i2.60
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ABSTRAKT

A physically based spray wall heat transfer model has been developed and implemented in the KIVA II computer code to simulate heat transfer to impinging liquid fuel sprays with application to direct-injection engines. The wall heat transfer model accounts for various wall impingement regimes including rebounding drops or drops sliding along the surface with enhanced breakup after impingement. The model identifies flooded and nonflooded regimes depending on whether or not a liquid film is determined to be present on the surface, respectively. In the flooded case, heat transfer is modeled based on boundary-layer correlations. In the nonflooded regime, heat transfer is modeled by considering correlations for individual drops. The heat transfer predictions were compared to three studies in which the wall heat flux was measured experimentally. These studies include evaporating sprays directed onto cool surfaces and heat transfer from a hot surface to a cooler impinging spray. The predictions of the model and the experimental results were generally in good agreement. In validating the heat transfer models, the spray atomization and hydrodynamic drop impingement models were also tested and validated against the experimental spray penetration data for a spray impinging in a pressurized bomb. It is concluded that the improved KIVA code is now capable of predicting heat transfer to impinging transient fuel sprays under engine conditions.

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