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雾化与喷雾

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ISSN 打印: 1044-5110

ISSN 在线: 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

OPTIMIZATION OF BREAKUP MODEL USING LES OF DIESEL SPRAY

卷 22, 册 1, 2012, pp. 57-77
DOI: 10.1615/AtomizSpr.2012004610
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摘要

In this study, an application of an original combined spray breakup model is proposed to simulate the transmit diesel spray feature by use of large eddy simulation (LES) analysis. The spray model is combined with the Kelvin−Helmholtz (KH) and Rayleigh−Taylor (RT) model (i.e., the KHRT model), which is a combination of the surface wave instability (WAVE) model, RT model, and modified Taylor analogy breakup (MTAB) model. Here, the spatial heterogeneous structure inside the spray is focused to assess the dispersion and mixing processes by applying an accurate spray breakup model. It is well known that the KHRT model can properly estimate the spray shape by underestimating the Sauter mean diameter (SMD) of the droplet within the spray, while the MTAB model can predict the SMD adequately by overestimating the parcel diffusion at the upper stream region of the spray. The KHRT model is based on the breakup regime of a higher droplet Weber number. The MTAB model is based on the breakup regime of a comparatively lower Weber number. In diesel sprays, high Weber number droplets can be observed at the upper spray region and low Weber number droplets can be observed downstream from the spray due to the momentum exchange between the liquid and gas phases. In this study, a breakup model was developed in order to improve the prediction accuracy of non-evaporating diesel spray. For analysis of the primary breakup regime, the WAVE model is employed in the higher droplet Weber number region and for the secondary breakup, the MTAB model is introduced into the lower Weber number region. This model is applied at different fuel injection pressures in order to validate the WAVE-MTAB model. As a result, the effect of the fuel injection pressure was successfully predicted by this WAVE-MTAB model.

对本文的引用
  1. Hori Tsukasa, Hanasaki Minoru, Komae Jun, Matsumura Eriko, Senda Jiro, Compressible Large-Eddy Simulation of Diesel Spray Structure using OpenFOAM, SAE Technical Paper Series, 1, 2015. Crossref

  2. Chen Jian, Wang Jin, Lu Guo-Dong, A study of formative and continuous models for umbrella water curtain based on wall-attaching jets, Cluster Computing, 20, 1, 2017. Crossref

  3. Yu H., Goldsworthy L., Ghiji M., Brandner P.A., Garaniya V., A parallel volume of fluid-Lagrangian Parcel Tracking coupling procedure for diesel spray modelling, Computers & Fluids, 150, 2017. Crossref

  4. Yasutomi Koji, Hori Tsukasa, Senda Jiro, Simulation and Optical Diagnostics for Internal Combustion Engines, in Simulations and Optical Diagnostics for Internal Combustion Engines, 2020. Crossref

  5. Hosogi Motoki, Matsumura Eriko, Senda Jiro, Hori Tsukasa, Improvement of Hybrid Scheme for WAVE-MTAB Model and Analytical Study of Diesel Spray Using Theory on the Spray Similarity, SAE Technical Paper Series, 1, 2019. Crossref

  6. Yamashita Tomohiro, Matsuda Dai, Kimura Ippei, Nishimura Kanako, Matsumura Eriko, Senda Jiro, Droplet Breakup Model in Spray Combustion SimulationBased on Measurements of Droplet Disintegration Mechanisms, International Journal of Automotive Engineering, 13, 4, 2022. Crossref

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