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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

EXPERIMENTAL STUDY OF PRESSURE DROP AND HEAT TRANSFER IN A U-BEND CHANNEL WITH VARIOUS GUIDE VANES AND RIBS

卷 22, 册 1, 2015, pp. 29-45
DOI: 10.1615/JEnhHeatTransf.2015013382
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摘要

An experimental study was conducted to investigate pressure drop and heat transfer in a U-bend section with various configurations of guide vanes and two kinds of rib shapes on the outer wall. Ten guide vane types were tested. Results highlight that the use of special guide vanes can reduce the pressure drop penalty up to a maximum of 31%. However, guide vanes are usually associated with heat transfer reduction. To further enhance heat transfer, transverse and V-shaped ribs were attached on the outer wall. Thermal performance evaluation showed that the 45° V-shaped downstream-pointing ribs coupled with guide vane configuration 5 give the best thermal performance. The results of this study can be employed to improve the internal design of modern gas turbine blade cooling systems.

对本文的引用
  1. Fustinoni D, Gramazio P, Vitali L, Niro A, New experimental results on local heat transfer inside a rectangular channel with rib-roughened surfaces, Journal of Physics: Conference Series, 796, 2017. Crossref

  2. Luo Lei, Chen Qiang, Du Wei, Wang Songtao, Sundén Bengt, Zhang Xinghong, Computational investigation of the dust hole effect on the heat transfer and friction factor characteristics in a U bend channel, Applied Thermal Engineering, 140, 2018. Crossref

  3. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Active and Passive Techniques: Their Applications, in Introduction to Enhanced Heat Transfer, 2020. Crossref

  4. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, 2D Roughness, 3D Roughness and Roughness Applications, in Insert Devices and Integral Roughness in Heat Transfer Enhancement, 2020. Crossref

  5. Wu Bin, Yang Xing, Liu Zhao, Feng Zhenping, Effects of novel turning vanes on pressure loss and tip-wall heat transfer in an idealized U-bend channel, International Communications in Heat and Mass Transfer, 121, 2021. Crossref

  6. Zhao Zhiqi, Luo Lei, Qiu Dandan, Wang Songtao, Wang Zhongqi, Sundén Bengt, Vortical structures and heat transfer augmentation of a cooling channel in a gas turbine blade with various arrangements of tip bleed holes, Numerical Heat Transfer, Part A: Applications, 79, 1, 2021. Crossref

  7. Zhao Zhiqi, Luo Lei, Qiu Dandan, Wang Songtao, Wang Zhongqi, Sundén Bengt, On the topology of vortex structures and heat transfer of a gas turbine blade internal tip with different arrangement of delta-winglet vortex generators, International Journal of Thermal Sciences, 160, 2021. Crossref

  8. Luo Lei, Zhao Zhiqi, Kan Xiaoxu, Qiu Dandan, Wang Songtao, Wang Zhongqi, On the Heat Transfer and Flow Structures’ Characteristics of the Turbine Blade Tip Underside With Dirt Purge Holes at Different Locations by Using Topological Analysis, Journal of Turbomachinery, 141, 7, 2019. Crossref

  9. Guo Yun, Zhang Xuning, Zhou Zhongwei, Coupled Heat and Flow Analysis Inside a Diversion-Type Gas Heater With Vertical Guide Plate Structure, Frontiers in Energy Research, 10, 2022. Crossref

  10. Zhao Zhiqi, Luo Lei, Du Wei, Wang Songtao, Zhou Xun, Sundén Bengt, Experimental study on the augmented Nusselt number of the endwall through a square-sectioned sharp-turn channel using novel heat exchanger, International Journal of Heat and Mass Transfer, 192, 2022. Crossref

  11. Zhao Zhiqi, Luo Lei, Zhou Xun, Wang Songtao, Wang Zhongqi, Sundén Bengt, Analysis of enhanced turbulent heat transfer in a sharp turn channel having novel designed endwall with longitudinal vortex generator, International Communications in Heat and Mass Transfer, 131, 2022. Crossref

  12. Luo Lei, Zhao Zhiqi, Qiu Dandan, Wang Songtao, Wang Zhongqi, Sundén Bengt, An experimental investigation on the thermal augmentation of internal endwall in a two-pass duct using an array of delta-winglet vortex generator pair, International Journal of Heat and Mass Transfer, 182, 2022. Crossref

  13. Zhao Zhiqi, Luo Lei, Qiu Dandan, Wang Songtao, Wang Zhongqi, Sundén Bengt, Influence of spacing of a delta-winglet vortex generator pair on the flow behavior and heat transfer at the internal tip of gas turbine blades, International Journal of Thermal Sciences, 175, 2022. Crossref

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