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Journal of Enhanced Heat Transfer

Published 8 issues per year

ISSN Print: 1065-5131

ISSN Online: 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

Effects of Vortex Generator Arrangements on Heat Transfer Enhancement over a Two-Row Fin-and-Tube Heat Exchanger

Volume 16, Issue 4, 2009, pp. 315-329
DOI: 10.1615/JEnhHeatTransf.v16.i4.10
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ABSTRACT

Heat transfer enhancement effects of two different configurations of delta-winglet pair vortex generators were experimentally studied in a narrow rectangular channel. This geometric configuration simulated a single passage of a two-row fin-and-tube heat exchanger. The local heat-transfer coefficient distributions on the surface with vortex generators and the opposing smooth surface were determined using an infrared camera. The flow behavior and structure of vortices were visualized by using the water and dye-injection method. The heat transfer enhancement with the pressure loss being taken into account was also investigated. The Reynolds number, Re, based on two-times of channel height and channel mean flow velocity ranged from 500 to 2000. Three arrangements of the vortex generator were suggested by installing delta-winglet pair vortex generators on the first and second rows. As a result, changes in local and spanwise-averaged Nusselt numbers on both the surfaces with and without vortex generators, and in the flow structure were observed by increasing the Reynolds number. Particularly, regions of high heat transfer appeared on the opposing smooth surface, and heat transfer in the wake zone behind the tubes was enhanced by reduced flow separation from the tubes caused by vortex generators.

CITED BY
  1. Du Xiaoze, Feng Lili, Yang Yongping, Yang Lijun, Experimental study on heat transfer enhancement of wavy finned flat tube with longitudinal vortex generators, Applied Thermal Engineering, 50, 1, 2013. Crossref

  2. Wu Xuehong, Zhang Wenhui, Gou Qiuping, Luo Zhiming, Lu Yanli, Numerical simulation of heat transfer and fluid flow characteristics of composite fin, International Journal of Heat and Mass Transfer, 75, 2014. Crossref

  3. Du Xiaoze, Feng Lili, Li Li, Yang Lijun, Yang Yongping, Heat transfer enhancement of wavy finned flat tube by punched longitudinal vortex generators, International Journal of Heat and Mass Transfer, 75, 2014. Crossref

  4. Caliskan S., Experimental investigation of heat transfer in a channel with new winglet-type vortex generators, International Journal of Heat and Mass Transfer, 78, 2014. Crossref

  5. Lin Zhi-Min, Liu Cai-Ping, Lin Mei, Wang Liang-Bi, Numerical study of flow and heat transfer enhancement of circular tube bank fin heat exchanger with curved delta-winglet vortex generators, Applied Thermal Engineering, 88, 2015. Crossref

  6. Gholami Ahmadali, Wahid Mazlan A., Mohammed H.A., Thermal–hydraulic performance of fin-and-oval tube compact heat exchangers with innovative design of corrugated fin patterns, International Journal of Heat and Mass Transfer, 106, 2017. Crossref

  7. Li M.J., Zhang H., Zhang J., Mu Y.T., Tian E., Dan D., Zhang X.D., Tao W.Q., Experimental and numerical study and comparison of performance for wavy fin and a plain fin with radiantly arranged winglets around each tube in fin-and-tube heat exchangers, Applied Thermal Engineering, 133, 2018. Crossref

  8. Gholami Ahmadali, Mohammed Hussein A., Wahid Mazlan A., Khiadani Mehdi, Parametric design exploration of fin-and-oval tube compact heat exchangers performance with a new type of corrugated fin patterns, International Journal of Thermal Sciences, 144, 2019. Crossref

  9. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Heat Transfer Fundamentals for Design of Heat Transfer Enhancement Devices, in Introduction to Enhanced Heat Transfer, 2020. Crossref

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