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Heat Transfer Research
Regional Editor (China/Asia): Ya-Ling He (open in a new tab)
Regional Editor (Europe): Bengt Sunden (open in a new tab)
Regional Editor (USA): Xinwei Wang (open in a new tab)

年間 18 号発行

ISSN 印刷: 1064-2285

ISSN オンライン: 2162-6561

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: 1.7 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: 1.4 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: 0.6 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: 0.00072 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: 0.43 SJR: 0.318 SNIP: 0.568 CiteScore™:: 3.5 H-Index: 28

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EFFECTS OF PIN FIN CONFIGURATIONS ON HEAT TRANSFER AND FRICTION FACTOR IN AN IMPROVED LAMILLOY COOLING STRUCTURE

巻 48, 発行 7, 2017, pp. 657-679
DOI: 10.1615/HeatTransRes.2016013575
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Lei Luo
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, China; School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
Chenglong Wang
Division of Heat Transfer, Department of Energy Sciences, Lund University, Box 118, Lund, SE-2 2 100, Sweden
Lei Wang
Division of Heat Transfer, Department of Energy Sciences, Lund University, Box 118, Lund, SE-2 2 100, Sweden
Bengt Sunden
BS Heat Transfer and Fluid Flow
Songtao Wang
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

要約

In this study, numerical simulations are conducted to investigate the effects of pin fin location, pin fin diameter, and pin fin shape on the target and pin fin surfaces heat transfer as well as friction factor in an improved Lamilloy cooling structure. The pin fin normalized location is varied from 0.35 to 0.65 while the pin fin diameter is changing from 15 mm to 60 mm. Cone-shaped pin fins are introduced, and the root to roof diameter ratio of the cone-shaped pin fin is ranging from 0.5 to 2. The Reynolds number is between 10,000 and 50,000. Results of the target and pin fin surfaces Nu number, friction factor, and flow structures are included. For convenience of comparison, the Lamilloy cooling structure whose pin fin normalized location is 0.5 with a pin fin diameter of 30 mm is studied as the baseline. It was found that with increase of the pin fin normalized location, the heat transfer on the pin fin surfaces is gradually decreased while the friction factor shows a lower value as the pin fins are positioned either near the impingement center or the film holes. This trend is also found for increasing the pin fin diameter. In addition, the heat transfer on the pin fin surface is increased remarkably by using a cone-shaped pin fin with a slight target surface heat transfer penalty. It was also found that by changing the pin fin location, pin fin diameter, and the pin fin shape, it may reach 7.6% higher values than the baseline thermal performance based on the target surface Nu number while it is 43.58% based on the pin fin surface.

キーワード: Lamilloy, pin fin, heat transfer, friction factor, cone-shaped
によって引用された

  1. Pu Jian, Wang Wei, Wang Jian-hua, Wu Wei-long, Wang Ming, Experimental study of free-stream turbulence intensity effect on overall cooling performances and solid thermal deformations of vane laminated end-walls with various internal pin–fin configurations, Applied Thermal Engineering, 173, 2020. Crossref

  2. Wang Chen, Zhang Jingzhou, Wang Chunhua, Tan Xiaoming, Multi-optimization of a specific laminated cooling structure for overall cooling effectiveness and pressure drop, Numerical Heat Transfer, Part A: Applications, 79, 3, 2021. Crossref

  3. Luo Lei, Zhang Yifeng, Wang Chenglong, Wang Songtao, Sunden Bengt Ake, On the heat transfer characteristics of a Lamilloy cooling structure with curvatures with different pin fins configurations, International Journal of Numerical Methods for Heat & Fluid Flow, 31, 4, 2021. Crossref

  4. Yan Han, Luo Lei, Du Wei, Wang Songtao, Sunden Bengt, Huang Dan, Flow structure and heat transfer characteristics in a ribbed two-pass channel with varying divider inclination angle, International Journal of Thermal Sciences, 166, 2021. Crossref

  5. Wang Chen, Wang Chunhua, Zhang Jingzhou, Cervone Angelo, Parametric Studies of Laminated Cooling Configurations: Overall Cooling Effectiveness, International Journal of Aerospace Engineering, 2021, 2021. Crossref

  6. Qiu Dandan, Luo Lei, Zhao Zhiqi, Wang Songtao, Wang Zhongqi, Sundén Bengt, On heat transfer and flow characteristics of jets impingement on a concave surface with varying pin-fin arrangements, International Journal of Thermal Sciences, 170, 2021. Crossref

  7. Zhang Jie, Huaizhi Han, Li Zerong, Zhong Huagui, Influence of pin-fin height and diameter on flow and cooling characteristics of three-layer porous laminates: An experimental study, Experimental Heat Transfer, 35, 6, 2022. Crossref

  8. Imdad Aaqib, Ali Hassan, Farooq Haroon, Ali Hafiz, Effect of condensate flow rate, surface tension, density and vapor velocity on condensate retention of wire wrapped tubes, Thermal Science, 26, 1 Part B, 2022. Crossref

  9. Li Honglin, Xie Feifan, Wang Yaning, Wang Chen, Yan Yan, Cui Jiahuan, Numerical Investigation on the Cooling Effectiveness and Pressure Loss of a Novel Laminated Cooling Configuration With Cellular Partition, Journal of Thermal Science and Engineering Applications, 15, 1, 2023. Crossref

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