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Atomization and Sprays

Publicou 12 edições por ano

ISSN Imprimir: 1044-5110

ISSN On-line: 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

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DEVELOPMENT OF AN IMPROVED SPRAY/WALL INTERACTION MODEL FOR DIESEL-LIKE SPRAY IMPINGEMENT SIMULATIONS

Volume 25, Edição 7, 2015, pp. 587-615
DOI: 10.1615/AtomizSpr.2015011000
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RESUMO

A new spray/wall interaction model was developed with emphasis on the simulation of diesel-like spray impingement generated by high injection pressures, which is widely used in direct-injection gasoline and diesel engines. In contrast to traditional spray/wall interaction models, lift forces were considered on the wall spray droplets in the new model, which generates a vortex at the leading edge of the wall spray instead of droplet rebound or splash. In addition, a wall-jet submodel was adopted to correct the droplet-gas relative velocity in the calculation of drag and lift forces on the droplets. Grid dependency was also significantly reduced in the new model due to the implementation of the wall-jet submodel. The wall-jet submodel was extended to cover both normal and oblique impingements, which are relevant in engines with a side-mounted injector. In the new model a new correlation was also developed to estimate the splashed mass ratio for each individual impact droplet, which provides a more accurate prediction of the overall spray impingement process. Extensive validations of the new model were performed through comparisons against measurements from a variety of diesel spray impingement experiments, instead of just using single drop or drop train impingement experiments. The results indicate that the new model matches experimental measurements very well and can be used for the prediction of spray/wall interaction, especially under the conditions relevant to modern direct-injection diesel and gasoline engines.

CITADO POR
  1. Payri Raúl, Salvador F.J., Manin Julien, Viera Alberto, Diesel ignition delay and lift-off length through different methodologies using a multi-hole injector, Applied Energy, 162, 2016. Crossref

  2. Deng Peng, Han Zhiyu, Reitz Rolf D, Modeling heat transfer in spray impingement under direct-injection engine conditions, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 230, 7, 2016. Crossref

  3. Zhang Yuyin, Li Shiyan, Qi Wenyuan, Nishida Keiya, Evaporation characterization of fuel spray impinging on a flat wall by laser-based measurement, International Journal of Engine Research, 18, 8, 2017. Crossref

  4. Garcia-Oliver Jose M., Garcia Antonio, Novella Ricardo, Morales López Andrés, An Investigation of the Engine Combustion Network ‘Spray B’ in a Light Duty Single Cylinder Optical Engine, SAE Technical Paper Series, 1, 2018. Crossref

  5. Du Wei, Zhang Qiankun, Bao Wenhua, Lou Juejue, Effects of injection pressure on spray structure after wall impingement, Applied Thermal Engineering, 129, 2018. Crossref

  6. Wu Zhenkuo, Deng Peng, Han Zhiyu, A numerical study on fuel film and emissions formations during cold start in a diesel engine using an improved spray-wall impingement model, Fuel, 320, 2022. Crossref

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