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ISSN 打印: 1065-5131

ISSN 在线: 1563-5074

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: 2.3 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: 0.2 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: 0.00037 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: 0.6 SJR: 0.433 SNIP: 0.593 CiteScore™:: 4.3 H-Index: 35

Indexed in

Flow Instability and Augmented Heat Transfer of Fin Arrays

卷 2, 册 1-2, 1995, pp. 23-32
DOI: 10.1615/JEnhHeatTransf.v2.i1-2.40
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摘要

A two-dimensional numerical computation was carried out for an in-line type of fln array for a periodically changing unsteady flow regime, or for the second laminar flow regime characterized by the self-sustained flow oscillation. Mechanisms of heat transfer augmentation due to the flow instability are discussed based on the obtained flow and thermal fields. First, it is observed that the flow instability occurring in the wake of a fin leads to the accelerated recovery of the wake and results in the mitigation of the wake effect and that it is effective to enhance the heat transfer of the downstream fin. Secondly, positive values of νθ are also produced near the fin surface. This is another mechanism to produce the fin surface heat transfer enhancement. It is also found that the dissimilarity between the momentum transfer and heat transfer is produced near the fin surface. Non-zero values of − take a sign to suppress the momentum transfer in spite of the favorable sign of νθ for heat transfer enhancement. It is also pointed out that flow is destabilized in the wake but is stabilized in the fin boundary layer.

对本文的引用
  1. Pavlov A.N., Sazhin S.S., Fedorenko R.P., Heikal M.R., A conservative finite difference method and its application for the analysis of a transient flow around a square prism, International Journal of Numerical Methods for Heat & Fluid Flow, 10, 1, 2000. Crossref

  2. Shah R.K., Heikal M.R., Thonon B., Tochon P., Progress in the numerical analysis of compact heat exchanger surfaces, in Chemistry and Biology of Hyaluronan, 34, 2001. Crossref

  3. Eckert E.r.g, Goldstein R.J, Ibele W.e, Patankar S.V, Simon T.W, Strykowski P.J, Tamma K.K, Kuehn T.H, Bar-Cohen A, Heberlein J.V.R, Davidson J.H, Bischof J, Kulacki F, Kortshagen U, Heat transfer—a review of 1995 literature, International Journal of Heat and Mass Transfer, 42, 15, 1999. Crossref

  4. Suzuki K., Xi G.N., Inaoka K., Hagiwara Y., Mechanism of heat transfer enhancement due to self-sustained oscillation for an in-line fin array, International Journal of Heat and Mass Transfer, 37, 1994. Crossref

  5. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Wavy Fin, 3D Corrugated Fin, Perforated Fin, Pin Fin, Wire Mesh, Metal Foam Fin, Packings, Numerical Simulation, in Heat Transfer Enhancement in Plate and Fin Extended Surfaces, 2020. Crossref

  6. Wang C-C, Lee W-S, Sheu W-J, Chang Y-J, Parametric study of the air-side performance of slit fin-and-tube heat exchangers in wet conditions, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 215, 9, 2001. Crossref

  7. Saidi Arash, Sundén Bengt, A numerical investigation of heat transfer enhancement in offset strip fin heat exchangers in self‐sustained oscillatory flows, International Journal of Numerical Methods for Heat & Fluid Flow, 11, 7, 2001. Crossref

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