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Computational Thermal Sciences: An International Journal

年間 6 号発行

ISSN 印刷: 1940-2503

ISSN オンライン: 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

NUMERICAL INVESTIGATION OF HEAT TRANSFER IN TALL ENCLOSURE WITH RIBBED WALLS

巻 2, 発行 1, 2010, pp. 33-42
DOI: 10.1615/ComputThermalScien.v2.i1.30
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要約

The aim of the present work was to study numerically the flow and heat transfer in a vertical rectangular cavity with high-aspect-ratio H/L = 10. The vertical and horizontal walls were assumed isothermal and adiabatic, respectively. The main purpose was to examine the effect of' sidewall ribbing (rib height and number of ribs) on the coefficient of heat transfer across the cavity. The number of ribs was 0 to 40, and the rib height was l/L = 0÷0.4. The ribs, arranged either in the staggered or opposing order, were attached to the cold as well to the warm wall. Two types of ribs, perfectly conducting ribs and adiabatic ribs, were analyzed. The range of Rayleigh numbers, Ra= 103÷105, include both the regime of thermal conduction and the multicell convection regime. Full two-dimensional Navier-Stokes equations in the stream function-vorticity variables were solved. The calculations showed that for all rib heights examined the surface-average heat-transfer coefficient increases first, attains the maximum, and then decreases with rise in the number of ribs. The most pronounced heat-transfer intensification is observed for high ribs. No heat-transfer suppression for perfectly conducting ribs was found; for adiabatic ribs, the heat-transfer rate decreased by 30% compared to its value for the sidewalls without ribbing. This decrease is observed for small-height ribbing l/L ≈ 0.25 with rather small (comparable with the cavity width) rib-to-rib spacing.

によって引用された
  1. Terekhov V. I., Ekaid A. L., Yassin K. F., Heat transfer at a laminar free convection and separated flow past a rib in a vertical channel with isothermal walls, Thermophysics and Aeromechanics, 24, 4, 2017. Crossref

  2. Terekhov V. I., Ekaid A. L., Yassin K. F., Laminar free convection heat transfer and separated flow structure in a vertical channel with isothermal walls and two adiabatic opposing fins, Journal of Engineering Thermophysics, 26, 3, 2017. Crossref

  3. Zemach Efi, Spizzichino Avihai, Feldman Yuri, Instability characteristics of a highly separated natural convection flow: Configuration of a tandem of cold and hot horizontally oriented cylinders placed within a cold cubic enclosure, International Journal of Thermal Sciences, 159, 2021. Crossref

  4. Terekhov Viktor I., Dyachenko Aleksey Yu., Smulsky Yaroslav J., Bogatko Tatyana V., Yarygina Nadezhda I., Separation of a Laminar Boundary Layer, in Heat Transfer in Subsonic Separated Flows, 2022. Crossref

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