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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

Indexed in

STUDY AND ANALYSIS OF THE DYNAMIC THERMAL-ENERGY BEHAVIOR OF A FLAT PLATE CONVERTER SYSTEM

Volume 11, Edição 3, 2019, pp. 233-242
DOI: 10.1615/ComputThermalScien.2018024450
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RESUMO

In this paper, air flow through a two-dimensional horizontal rectangular cross-section channel in the presence of a Z-shaped baffle pair has been numerically examined and analyzed in the steady turbulent regime. The calculations are based on the finite volume approach, and the average Navier-Stokes equations along with the energy equation have been solved using the SIMPLE algorithm. The nonuniform structured quadrilateral-type element mesh is used for the investigated whole domain. The fluid flow patterns are presented for Reynolds numbers based on the hydraulic diameter of the channel ranging from 5000 to 20,000. Effects of various Reynolds number values on flow fields, dimensionless axial velocity profiles, as well as local and average friction coefficients in the test channel are presented. The obtained results show that the flow structure is characterized by strong deformations and large recirculation regions, and in general, the fluid velocity and skin friction loss rise with the increase in the flow rate in terms of Reynolds numbers.

Referências
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  2. Dermatni, L.C., Vielmo, H.A., and Moller, S.V., Numeric and Experimental Analysis of the Turbulent Flow through a Channel with Baffle Plates, J. Braz. Soc. Mech. Sci. Eng., vol. 26, no. 2, pp. 153–159, 2004.

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  7. Nasiruddin and Kamran Siddiqui, M.H., Heat Transfer Augmentation in a Heat Exchanger Tube using a Baffle, Int. J. Heat Fluid Flow, vol. 28, pp. 318–328, 2006.

  8. Tandiroglu, A., Effect of Flow Geometry Parameters on Transient Heat Transfer for Turbulent Flow in a Circular Tube with Baffle Inserts, Int. J. Heat Mass Transfer, vol. 49, pp. 1559–1567, 2006.

  9. Ward, S., Optimization of the Forms and Provisions of Obstacles in the Mobile Air Vein of Solar Air Collectors at Two Air Layers for the Maximization of the Couple Efficiency–Rise in Temperature, Thesis of speciality in energetics, University of Valenciennes, Franc.

  10. Roetzel,W. and Lee, D.W., Effect of Baffle/Shell Leakage Flow on Heat Transfer in Shell–and–Tube Heat Exchanger, Exp. Therm. Fluid Sci., vol. 8, pp. 10–20, 1994.

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