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Computational Thermal Sciences: An International Journal

Publicou 6 edições por ano

ISSN Imprimir: 1940-2503

ISSN On-line: 1940-2554

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: 1.5 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 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: 0.00017 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: 0.279 SNIP: 0.544 CiteScore™:: 2.5 H-Index: 22

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NUMERICAL STUDY OF THE EFFECT OF HEAT LOSS ON TRIPLE FLAME PROPAGATION IN A POROUS WALLS CHANNEL

Volume 4, Edição 5, 2012, pp. 379-386
DOI: 10.1615/ComputThermalScien.2012005345
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RESUMO

We numerically examine in this study the effect of heat loss on triple flame propagation in porous channels. Unlike previous studies that were based on a counterflow configuration, we consider a porous channel in which a nonstrained two-dimensional mixing layer is created as a result of the constant concentrations of the reactants−fuel and oxidizer− supplied at the walls. The problem is formulated mathematically within the framework of a thermodiffusive model and a single-step chemistry along with a volumetric heat loss, and then solved numerically using finite elements. The results have identified the effect of two main nondimensional parameters on flame propagation, namely the heat loss κ and the flame-front thickness ε. Such parameters are found to be crucial for the existence of multiple solutions and hysteresis phenomena characterizing distinct combustion regimes. The number and the domain of existence of multiple solutions are identified in the κ− ε plane. The overall impact of heat loss on triple flames is to a large extent found to be qualitatively similar to that reported for flame edges propagating in counterflow. The study has also described the transition of the flame structure across the combustion regimes, between triple flames, edge flames, and flame tubes.

CITADO POR
  1. Al-Malki Faisal, Numerical simulation of the influence of partial premixing on the propagation of partially premixed flames, Computers & Mathematics with Applications, 66, 3, 2013. Crossref

  2. Al-Malki Faisal, Asymptotic analysis to the effect of temperature gradient on the propagation of triple flames, Combustion Theory and Modelling, 22, 3, 2018. Crossref

  3. Al-Malki Faisal, A Numerical Simulation to the Influence of Unsteady Strain Flow on Twin Premixed Flames, Journal of Thermal Science and Engineering Applications, 11, 3, 2019. Crossref

  4. Al-Malki Faisal, The Combined Effects of Heat Loss and Reversibility on the Propagation of Planar Premixed Counterflow Flames, Journal of Thermal Science and Engineering Applications, 10, 6, 2018. Crossref

  5. Al-Malki Faisal, Influence of transverse temperature gradient on the propagation of triple flames in porous channels, Computers & Mathematics with Applications, 76, 2, 2018. Crossref

  6. Al-Malki Faisal, Influence of Fuel Premixing on Partially Premixed Flames in Porous-Wall Channels, International Journal of Nonlinear Sciences and Numerical Simulation, 18, 7-8, 2017. Crossref

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