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Journal of Enhanced Heat Transfer

Publicado 8 números por año

ISSN Imprimir: 1065-5131

ISSN En Línea: 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

Convective Heat Transfer and Absolute Vorticity Flux along Main Flow in a Channel Formed by Flat Tube Bank Fins with Vortex Generators Mounted on Both Fin Surfaces

Volumen 16, Edición 2, 2009, pp. 123-139
DOI: 10.1615/JEnhHeatTransf.v16.i2.30
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SINOPSIS

Tube bank fin heat exchangers are employed in a wide variety of engineering applications. If vortex generators (VGs) are mounted or punched onto fin surfaces, heat transfer can be enhanced even if the height of the VG is small. The role of VGs is to produce longitudinal vortices along the main flow, and vortices are kinds of secondary flows. It is still not clear why a secondary flow can enhance heat transfer efficiently, and we lack a parameter that can be used to specify its intensity. In this paper, cross-averaged absolute vorticity flux in the main flow direction is used to specify the intensity of the secondary flow produced by the VGs mounted on both surfaces of the fin. The relationship between the intensity of the secondary flow and the strength of convective heat transfer is studied using a numerical method. The results reveal that cross-averaged absolute vorticity flux in the main flow direction can reflect the intensity of a secondary flow. For the case studied, there is a strong relationship between this cross-averaged absolute vorticity flux and the span-averaged Nusselt number. One would expect that the cross-averaged absolute vorticity flux along the main flow can be used to check the suitability of the arrangement of the VGs on the fin surfaces.

CITADO POR
  1. Lin Zhi-Min, Wang Liang-Bi, Convective Heat Transfer Enhancement in a Circular Tube Using Twisted Tape, Journal of Heat Transfer, 131, 8, 2009. Crossref

  2. Lin Zhi-Min, Wang Liang-Bi, Fan Ju-Fang, Gao Quan-Fu, Characteristics of the Absolute Vorticity Flux along the Main Flow Direction on the Cross Section of the Channel Formed by Oval Tube Bank Fins, Numerical Heat Transfer, Part A: Applications, 57, 9, 2010. Crossref

  3. Hu Wanling, Su Mei, Wang Liangcheng, Zhang Qiang, Chang Limin, Liu Song, Wang Liangbi, The optimum fin spacing of circular tube bank fin heat exchanger with vortex generators, Heat and Mass Transfer, 49, 9, 2013. Crossref

  4. Hu Wan-Ling, Song Ke-Wei, Guan Yong, Chang Li-Min, Liu Song, Wang Liang-Bi, Secondary flow intensity determines Nusselt number on the fin surfaces of circle tube bank fin heat exchanger, International Journal of Heat and Mass Transfer, 62, 2013. Crossref

  5. Gong Bao, Wang Liang-Bi, Lin Zhi-Min, Heat transfer characteristics of a circular tube bank fin heat exchanger with fins punched curve rectangular vortex generators in the wake regions of the tubes, Applied Thermal Engineering, 75, 2015. Crossref

  6. Zhang Yongheng, Wang Liangbi, Han Yanxia, Study of heat transfer performance of tube-fin heat exchanger with interrupted annular groove fin, 2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011. Crossref

  7. Duan Fei, Song KeWei, Li HouRan, Chang LiMin, Zhang YongHeng, Wang LiangBi, Numerical study of laminar flow and heat transfer characteristics in the fin side of the intermittent wavy finned flat tube heat exchanger, Applied Thermal Engineering, 103, 2016. Crossref

  8. Wei Xiu-Qin, Zhang Yong-Heng, Hu Wan-Ling, Wang Liang-Bi, The fluid flow and heat transfer characteristics in the channel formed by flat tube and dimpled fin, International Journal of Thermal Sciences, 104, 2016. Crossref

  9. Song KeWei, Hu WanLing, Liu Song, Wang LiangBi, Quantitative relationship between secondary flow intensity and heat transfer intensity in flat-tube-and-fin air heat exchanger with vortex generators, Applied Thermal Engineering, 103, 2016. Crossref

  10. Tian Zihao, Yang Lixin, Numerical Investigation on the Vortex-Flow Characteristics in Rod Bundles with Mixing-Vane Spacer Grids, Journal of Thermal Science, 27, 5, 2018. Crossref

  11. TAO Zhi, LI Liangwei, ZHU Jianqin, HU Xizhuo, WANG Longyun, QIU Lu, Numerical investigation on flow and heat transfer characteristics of supercritical RP-3 in inclined pipe, Chinese Journal of Aeronautics, 32, 8, 2019. Crossref

  12. Song Ke-Wei, Wang Liang-Bi, The Effectiveness of Secondary Flow Produced by Vortex Generators Mounted on Both Surfaces of the Fin to Enhance Heat Transfer in a Flat Tube Bank Fin Heat Exchanger, Journal of Heat Transfer, 135, 4, 2013. Crossref

  13. Song KeWei, Shi WeiNa, Wu Xiang, Wang LiangBi, Characteristics of Flow Symmetry and Heat Transfer of Winglet Pair in Common Flow Down Configuration, Symmetry, 12, 2, 2020. Crossref

  14. Dang Wei, Wang Liang-Bi, Convective heat transfer enhancement mechanisms in circular tube inserted with a type of twined coil, International Journal of Heat and Mass Transfer, 169, 2021. Crossref

  15. Luo Chao, Song KeWei, Tagawa Toshio, Heat transfer enhancement of a double pipe heat exchanger by Co-Twisting oval pipes with unequal twist pitches, Case Studies in Thermal Engineering, 28, 2021. Crossref

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