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Atomization and Sprays

Published 12 issues per year

ISSN Print: 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

NUMERICAL ANALYSIS OF BALLISTIC IMAGING FOR REVEALING LIQUID BREAKUP IN DENSE SPRAYS

Volume 20, Issue 5, 2010, pp. 407-413
DOI: 10.1615/AtomizSpr.v20.i5.30
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ABSTRACT

This work demonstrates the capacity of a ballistic imaging instrument to suppress diffuse photons and improve image contrast, making it possible to view fluid structure in a spray where a fog of droplets occludes the near field. Analysis of the system is performed by means of a numerical system model. The model simulates light propagation and scattering in the measurement volume using aMonte Carlo-based solution to the radiative transfer equation, and includes treatment of the full system optics using a custom ray-tracing code. Simulation results for the validation case where source light illuminates a test chart inside a turbid (optical depth OD = 14) solution of monodisperse polystyrene spheres (d = 0.7 μm) show good agreement with experimental images. The model is further applied by replacing the solution of polystyrene spheres with a spraylike scattering medium. Here, we investigate the temporal characteristics of an ultrashort (100 fs) laser signal crossing a volume containing a polydisperse distribution of fuel droplets with a representative Sauter mean diameter, D32 = 23 μm. These quantitative predictions allow the effectiveness of both the spatial and temporal filtering of the ballistic imaging instrument to be estimated. Results from the model demonstrate that the spatial filtering and time gating effects of the ballistic imaging system significantly improve image contrast, revealing information that is not available with conventional imaging techniques.

CITED BY
  1. Coghe A., Cossali G.E., Quantitative optical techniques for dense sprays investigation: A survey, Optics and Lasers in Engineering, 50, 1, 2012. Crossref

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