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Journal of Enhanced Heat Transfer

Publicou 8 edições por ano

ISSN Imprimir: 1065-5131

ISSN On-line: 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

The Scaling and Correlation of Low Reynolds Number Swirl Flows and Friction Factors in Circular Tubes with Twisted-Tape Inserts

Volume 8, Edição 6, 2001, pp. 383-395
DOI: 10.1615/JEnhHeatTransf.v8.i6.30
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RESUMO

This paper assesses the scaling and correlation of fully developed swirl generated by twisted-tape inserts in laminar circular-tube flows. The tape-induced secondary fluid circulation is shown to be characterized by a helical vortex, which grows and breaks up into a pair of counterrotating vortices with decreasing tape-twist ratio y and/or increasing axial flow Reynolds number Re. The validity of correlating isothermal friction factors in such fully developed, two-vortex-cell laminar flows by the swirl parameter (Sw = Res / √y) proposed in an earlier study (Manglik and Bergles [1993a]) is evaluated. Experimental data and computational simulations reported in the literature for a wide range of laminar flow conditions (43 < Re < 2720) and twist ratios (1.5 ≤ y) of the tape inserts are considered. All data and numerical results are found to be in excellent agreement (within ±10%) with the predictions of the Manglik and Bergles f-correlation. This clearly establishes its generalized design applicability as well as verifies the scaling of tape-induced swirl flows by the parameter Sw.

CITADO POR
  1. Saha S. K., Mallick D. N., Heat Transfer and Pressure Drop Characteristics of Laminar Flow in Rectangular and Square Plain Ducts and Ducts With Twisted-Tape Inserts, Journal of Heat Transfer, 127, 9, 2005. Crossref

  2. Martín R. Herrero, Pérez-García J., García A., García-Soto F.J., López-Galiana E., Simulation of an enhanced flat-plate solar liquid collector with wire-coil insert devices, Solar Energy, 85, 3, 2011. Crossref

  3. García Alberto, Martin Ruth Herrero, Pérez-García José, Experimental study of heat transfer enhancement in a flat-plate solar water collector with wire-coil inserts, Applied Thermal Engineering, 61, 2, 2013. Crossref

  4. Herrero Martin R. , Pinar A. Garcia , Garcia J. Perez, Experimental Heat Transfer Research in Enhanced Flat-Plate Solar Collectors , Proceedings of the World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden, 57, 2011. Crossref

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  9. Metwally H.M., Manglik R.M., Enhanced heat transfer due to curvature-induced lateral vortices in laminar flows in sinusoidal corrugated-plate channels, International Journal of Heat and Mass Transfer, 47, 10-11, 2004. Crossref

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  14. Manglik Raj M., Bergles Arthur E., Characterization of Twisted-Tape-Induced Helical Swirl Flows for Enhancement of Forced Convective Heat Transfer in Single-Phase and Two-Phase Flows, Journal of Thermal Science and Engineering Applications, 5, 2, 2013. Crossref

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  16. Wang Li, Ni Peiyong, Xi Guannan, The effect of off-center placement of twisted tape on flow and heat transfer characteristics in a circular tube, Scientific Reports, 11, 1, 2021. Crossref

  17. Shi Dantong, Lin Kuan-Ting, Jog Milind A., Manglik Raj M., Characterization and Scaling of Forced Convective Swirl in Sinusoidal Wavy-Plate-Fin Cores of Compact Heat Exchangers, Journal of Heat Transfer, 143, 2, 2021. Crossref

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