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

STRUCTURE OF REACTING AND NONREACTING, NONSWIRLING, AIR-ASSISTED SPRAYS, PART I: GAS-PHASE PROPERTIES

Volume 3, Issue 4, 1993, pp. 389-410
DOI: 10.1615/AtomizSpr.v3.i4.30
Get accessGet access

ABSTRACT

A detailed characterization of the continuous and dispersed phases present in a methanol spray produced by a nonswirling air-assist atomizer operated in a down-fired orientation under reacting and nonreacting conditions is presented. This study is the second in a series of ongoing efforts to understand the behavior of sprays under a variety of conditions. Measurements of continuous-phase mean and fluctuating velocities, dispersed-phase size and velocity distributions, and local dispersed-phase volume flux are obtained using phase Doppler interferometry. The mean concentration of hydrocarbons in the continuous phase are measured using a two-wavelength extinction/absorption technique. Part I of the present article focuses on results from the gas-phase measurements. The results indicate that the presence of droplets can increase or reduce the fluctuating velocities and shear stress in the gas phase, depending on the local concentration, size, and relative velocities of the drops. The presence of reaction (I) expands and accelerates the gas phase, (2) increases the amount of hydrocarbon vapor present near the centerline, and (3) increases the anisotropy of the gas-phase turbulence compared to the nonreacting case. The measurements indicate the existence of two regions in the reacting spray: (1) a relatively coot central region that features high vapor concentrations; and (2) a surrounding high-temperature reaction zone in which vapor is consumed. It is observed that, in the far field, the velocity profiles of the single-phase jet and of the gas phase in the nonreacting spray are self-similar. This behavior is also observed for previous data sets with one exception, and that case featured a much higher liquid-to-air mass loading ratio. The presence of reaction does not significantly alter the self-similar behavior, although the profiles do narrow. The concentration profiles do not exhibit self-similar behavior, as expected, due to the presence of vapor sources (i.e., drops).

CITED BY
  1. Tolpadi A. K., Burrus D. L., Lawson R. J., Numerical Computation and Validation of Two-Phase Flow Downstream of a Gas Turbine Combustor Dome Swirl Cup, Journal of Engineering for Gas Turbines and Power, 117, 4, 1995. Crossref

  2. Chrigui Mouldi, Zghal Ali, Sadiki Amsini, Janicka Johannes, Spray evaporation and dispersion of n-heptane droplets within premixed flame, Heat and Mass Transfer, 46, 8-9, 2010. Crossref

  3. McDonell V. G., Samuelsen G. S., An Experimental Data Base for the Computational Fluid Dynamics of Reacting and Nonreacting Methanol Sprays, Journal of Fluids Engineering, 117, 1, 1995. Crossref

  4. Shavit Uri, Chigier Norman, The role of dynamic surface tension in air assist atomization, Physics of Fluids, 7, 1, 1995. Crossref

  5. Friedman Jacob A., Renksizbulut Metin, Interaction of Annular Air Jet with a Non-Evaporating Liquid Spray, Particle & Particle Systems Characterization, 11, 6, 1994. Crossref

  6. Karpetis A.N., Gomez A., An experimental study of well-defined turbulent nonpremixed spray flames, Combustion and Flame, 121, 1-2, 2000. Crossref

  7. Chiu H.H., Mesoscale structures of turbulent sprays, Proceedings of the Combustion Institute, 28, 1, 2000. Crossref

  8. Jenny Patrick, Roekaerts Dirk, Beishuizen Nijso, Modeling of turbulent dilute spray combustion, Progress in Energy and Combustion Science, 38, 6, 2012. Crossref

  9. Amani E., Nobari M.R.H., Systematic tuning of dispersion models for simulation of evaporating sprays, International Journal of Multiphase Flow, 48, 2013. Crossref

  10. Intra- and Interlaboratory Experiments to Assess Performance of Phase Doppler Interferometry, in Recent Advances in Spray Combustion: Spray Atomization and Drop Burning Phenomena, 1996. Crossref

  11. Assessing the Physics of Spray Behavior in Complex Combustion Systems, in Recent Advances in Spray Combustion: Spray Combustion Measurements and Model Simulation, 1996. Crossref

  12. Jones W.P., Marquis A.J., Noh D., A stochastic breakup model for Large Eddy Simulation of a turbulent two-phase reactive flow, Proceedings of the Combustion Institute, 36, 2, 2017. Crossref

  13. Jones William P., Marquis Andrew J., Noh Dongwon, An investigation of a turbulent spray flame using Large Eddy Simulation with a stochastic breakup model, Combustion and Flame, 186, 2017. Crossref

  14. Sadiki Amsini, Ahmadi W., Chrigui Mouldi, Toward the Impact of Fuel Evaporation-Combustion Interaction on Spray Combustion in Gas Turbine Combustion Chambers. Part II: Influence of High Combustion Temperature on Spray Droplet Evaporation, in Experiments and Numerical Simulations of Diluted Spray Turbulent Combustion, 17, 2011. Crossref

  15. CESSOU A., STEPOWSKI D., Planar Laser Induced Fluorescence Measurement of [ OH] in the Stabilization Stage of a Spray Jet Flame, Combustion Science and Technology, 118, 4-6, 1996. 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