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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 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

EXPERIMENTAL AND NUMERICAL ANALYSIS OF SPRAY DISPERSION AND EVAPORATION IN A COMBUSTION CHAMBER

巻 19, 発行 10, 2009, pp. 929-955
DOI: 10.1615/AtomizSpr.v19.i10.30
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要約

This work investigates a set of two-phase flow submodels to propose a reliable complete numerical model that is able to predict flow and evaporating droplet properties under industrial gas turbine conditions. For these purposes, a confined complex spray configuration was studied experimentally and numerically. Measurements of the gas phase were conducted using the laser Doppler anemometry (LDA) technique. The nozzle was operated in a modular combustor at elevated pressure and temperature conditions. For the dispersed phase, a nonreacting phase (water) was chosen to prevent chemical reactions. The focus of the investigation was on spray propagation and evaporation. Droplet velocity components and droplet diameters were measured using phase Doppler anemometry (PDA). Radial profiles were taken along two axes, recording the axial and radial velocity components as well as the probability density functions of the diameter distributions. Numerical simulations were performed within the framework of a Reynolds-averaged NavierStokes (RANS)-based Eulerian−Lagrangian approach to appraise the prediction techniques used. Under the framework of two-way coupling, the dispersed phase effects on the momentum, turbulence quantities, energy, and mass were accounted for by adding appropriate source terms to each transport equation of the gas phase. A significantly large droplet number was used to ensure reliable statistical averaging so that the dispersed phase properties do not depend on the parcel number within the control volume. Comparisons between the numerical and experimental results showed acceptable agreement for the droplet velocities, axial mass flux, and Sauter mean diameter, but some disagreements were observed for the fluctuations and the apex angle of the spray.

によって引用された
  1. 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

  2. Chrigui Mouldi, Roisman Ilia V., Batarseh Feras Z., Sadiki Amsini, Tropea Cam, Spray Generated by an Airblast Atomizer Under Elevated Ambient Pressures, Journal of Propulsion and Power, 26, 6, 2010. Crossref

  3. Sacomano Filho Fernando Luiz, Fukumasu Newton Kiyoshi, Krieger Guenther Carlos, Numerical simulation of an ethanol turbulent spray flame with RANS and diffusion combustion model, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 35, 3, 2013. Crossref

  4. Chrigui M., Gounder J., Sadiki A., Janicka J., Masri A. R., Acetone Droplet Behavior in Reacting and Non Reacting Turbulent Flow, Flow, Turbulence and Combustion, 90, 2, 2013. Crossref

  5. Richardson Daniel R., Brinker Andrew J., Polanka Marc D., Lynch Amy, Blunck David L., Liquid Spray Characterization in Flow Field with Centripetal Acceleration, 52nd Aerospace Sciences Meeting, 2014. Crossref

  6. Freitag S., Experimental investigations of fuel preparation in a swirling airflow under realistic conditions without reaction in a combustor model with a point fuel source, CEAS Aeronautical Journal, 9, 3, 2018. Crossref

  7. 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

  8. Sadiki A., Chrigui M., Dreizler A., Thermodynamically Consistent Modelling of Gas Turbine Combustion Sprays, in Flow and Combustion in Advanced Gas Turbine Combustors, 1581, 2013. Crossref

  9. Huang Dongxin, Xu Jianguo, Chen Ruiyan, Meng Hua, Large eddy simulations of turbulent combustion of kerosene-air in a dual swirl gas turbine model combustor at high pressures, Fuel, 282, 2020. Crossref

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