Library Subscription: Guest
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

DISPERSION (ELECTROSTATIC/MECHANICAL) AND FUEL PROPERTIES EFFECTS ON SOOT PROPENSITY IN CLUSTERS OF DROPS

Volume 8, Issue 6, 1998, pp. 601-624
DOI: 10.1615/AtomizSpr.v8.i6.10
Get accessGet access

ABSTRACT

Soot propensity is studied numerically for an initially binary size, axisymmetric cluster of evaporating drops by defining it as the propensity for nucleation reactions to occur; the study does not address physical or chemical processes ensuing after soot nucleation, such as soot oxidation effects resulting from the fuel molecular structure. The relative magnitude of the fuel vapor partial density is taken as an indication of the soot nucleation magnitude; thus, the effect of drop dispersion on soot (precursor) formation is isolated from that of soot production resulting from formation/destruction by oxidation. The cluster is embedded in an inviscid vortex and exchanges mass, momentum, species, and energy with its surroundings. The vortical motion disperses the drops and the initial cluster evolves into a cylindrical shell with an inner and an outer boundary. In addition to the forces resulting from the vortical motion, an electrostatic force acts on the cluster when the drops are charged; in this situation, the drops might become small enough to reach the Rayleigh limit. Results are obtained for typical vortical motion times having the same order of magnitude as the drop lifetime. Analysis of the results shows that the motion of uncharged drops is determined primarily by centrifugation, whereas for charged drops the electrostatic dispersion becomes the dominant influence in the outer part of the cluster. In the range of parameters investigated, mechanical dispersion cannot rival electrostatically induced dispersion for decreasing the fuel vapor partial density. An additional feature of drop charging is the maintenance of a finite slip velocity in the outer part of the cluster, thereby compounding the advantage of increased dispersion to enhanced evaporation. The results also show that mechanical dispersion combined with electrostatic dispersion does not have a substantial advantage over electrostatic dispersion alone. For uncharged drops it has been found that the latent heat governs soot propensity at small drop dispersion, whereas the liquid density becomes increasingly important with increasing drop dispersion. Drop charging does not affect the influence of fuel physical properties on soot propensity.

CITED BY
  1. Shrimpton J. S., Pulsed charged sprays: application to DISI engines during early injection, International Journal for Numerical Methods in Engineering, 58, 3, 2003. Crossref

  2. Roy Gabriel D., Utilization of High-Density Strained Hydrocarbon Fuels for Propulsion, Journal of Propulsion and Power, 16, 4, 2000. Crossref

  3. Anderson Eric, Carlucci A, de Risi Arturo, Kyritsis Dimitrios, Experimental Investigation of Electrostatically Charged Liquid Hydrocarbon Sprays for Power Generation Applications, 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2005. Crossref

Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain