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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 HEAT AND FLUID FLOW PAST A CUBICAL PARTICLE AT SUBCRITICAL REYNOLDS NUMBERS

Volume 4, Edição 4, 2012, pp. 283-296
DOI: 10.1615/ComputThermalScien.2012005098
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RESUMO

This work is devoted to a numerical investigation into heat and fluid flow past a particle of a cubical shape. Additionally, it is a continuation of the recent publication by Richter and Nikrityuk (Int. J. Heat Mass Transfer, vol. 55, no. 4, pp. 1343−1354, 2012a), where the authors performed numerical calculations of drag forces and heat transfer coefficients for nonspherical particles in laminar flows with an angle of attack of zero. In this work we focus on the influence of the angle of attack on flow past a cubical particle. Due to the asymmetric flow, three-dimensional calculations were carried out based on the immersed boundary (IB) method in continuous forcing mode; see the review by Mittal and Iaccarino (Ann. Rev. Fluid Mech., vol. 37, pp. 239−261, 2005). In order to substantiate the results, additional calculations were made based on a so-called conventional computational fluid dynamics (CFD) solver using body-fitted meshes. Based on the present analysis of numerical results obtained for a cubical particle, new correlations for both the drag coefficient (cD) and the Nusselt number (Nu) were developed. In addition to the Prandtl and Reynolds numbers, both correlations incorporate the angle of attack. A significant influence of the particle orientation on the characteristics cD and Nu was observed. The accuracy of the closures developed for cD and Nu is discussed, comparing the relations developed with published models.

CITADO POR
  1. Schmidt Robin, Wittig Kay, Nikrityuk Petr A., Single Particle Heating and Drying, in Gasification Processes, 2014. Crossref

  2. Wittig Kay, Richter Andreas, Golia Aakash, CDand Nu Closure Relations for Spherical and Nonspherical Particles, in Gasification Processes, 2014. Crossref

  3. Wittig Kay, Nikrityuk Petr, Richter Andreas, Drag coefficient and Nusselt number for porous particles under laminar flow conditions, International Journal of Heat and Mass Transfer, 112, 2017. Crossref

  4. Dierich Frank, Ananiev Sergey, Nikrityuk Petr A., Simple immersed boundary matrix‐cut‐method for cartesian grids using FV and FD discretizations, The Canadian Journal of Chemical Engineering, 97, 1, 2019. Crossref

  5. Ma Huaqing, Zhao Yongzhi, Convective heat transfer coefficient for a rod-like particle in a uniform flow, International Journal of Heat and Mass Transfer, 147, 2020. Crossref

  6. Nguyen Cong Bang, Scherer Johannes, Guo Qinghua, Kriebitzsch Sebastian, Richter Andreas, The shape development of spherical and non-spherical char particles in the flame zone of an entrained-flow gasifier – A numerical study, International Journal of Heat and Mass Transfer, 149, 2020. Crossref

  7. An Fengbo, Küster Felix, Ackermann Roland, Guhl Stefan, Richter Andreas, Heat and mass transfer analysis of a high-pressure TGA with defined gas flow for single-particle studies, Chemical Engineering Journal, 411, 2021. Crossref

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