图书馆订阅: Guest
传热学

每年出版 18 

ISSN 打印: 1064-2285

ISSN 在线: 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

Indexed in

Augmented Heat Transfer of an Internal Blade Tip by Full or Partial Arrays of Pin-Fins

卷 42, 册 1, 2011, pp. 65-81
DOI: 10.1615/HeatTransRes.v42.i1.60
Get accessGet access

摘要

Cooling methods are needed for the turbine blade tips to ensure a long durability and safe operation. A common way to cool the tip is to design serpentine passages with 180-deg turn under the blade tip- cap taking advantage of the three-dimensional turning effect and impingement like flow. Improved internal convective cooling is therefore required to increase the blade tip life. In the present study, augmented heat transfer of an internal blade tip by pin-fins has been investigated numerically. The computational models consist of a two-pass channel with 180-deg turn and an array of pin-fins mounted on the tip-cap, and a smooth-tip two-pass channel. The computational domain includes the fluid region and the solid pins as well as the tip regions. Turbulent convective heat transfer between the fluid and pins, and heat conduction within pins and tip are simultaneously computed. The main objective of the present study is to observe the effect of the full and partial pin-fins arrays on heat transfer enhancement of pin-finned tips. Results show that due to the combination of turning impingement and pin-fin crossflow, the maximum heat transfer coefficient of the full and partial pin-finned tip is a factor of 3.0 and 1.8, respectively, higher than that of a smooth tip. Disregarding the increased active heat transfer area, the tip with partial pin-fins array provides around 6% higher heat transfer enhancement than the tip with full pin-fins array. It is suggested that the use of partial pin-fins array is suitable for improving blade tip cooling when the added weight and thereby the increased stress on a blade are considered.

对本文的引用
  1. Xie Gongnan, Zhang Weihong, Sunden Bengt, Computational analysis of the influences of guide ribs/vanes on enhanced heat transfer of a turbine blade tip-wall, International Journal of Thermal Sciences, 51, 2012. Crossref

  2. Xie Gongnan, Sundén Bengt, Zhang Weihong, Comparisons of Pins/Dimples/Protrusions Cooling Concepts for a Turbine Blade Tip-Wall at High Reynolds Numbers, Journal of Heat Transfer, 133, 6, 2011. Crossref

  3. Rimza Sandeep, Khirwadkar Samir, Velusamy Karuppanna, An experimental and numerical study of flow and heat transfer in helium cooled divertor finger mock-up with sectorial extended surface, Applied Thermal Engineering, 82, 2015. Crossref

  4. Rimza Sandeep, Satpathy Kamalakanta, Khirwadkar Samir, Velusamy Karupanna, Optimal design of divertor heat sink with different geometric configurations of sectorial extended surfaces, Fusion Engineering and Design, 100, 2015. Crossref

  5. Zhang Di, Jing Qi, Xie Yonghui, Shen Zhongyang, Numerical prediction on turbine blade internal tip cooling with pin-fin and dimple/protrusion structures, Numerical Heat Transfer, Part A: Applications, 70, 9, 2016. Crossref

  6. Xie Gongnan, Sundén Bengt, Wang Qiuwang, Predictions of Enhanced Heat Transfer of an Internal Blade Tip-Wall With Hemispherical Dimples or Protrusions, Journal of Turbomachinery, 133, 4, 2011. Crossref

  7. 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

将发表的论文

Effective Efficiency Analysis of Artificially Roughed Solar Air Heater MAN AZAD Energy, Exergy-Emission Performance Investigation of Heat Exchanger with Turbulators Inserts and Ternary Hybrid Nanofluid Ranjeet Rai, Vikash Kumar, Rashmi Rekha Sahoo Temperature correction method of radiation thermometer based on the nonlinear model fitted from spectral emissivity measurements of Ni-based alloy Yanfen Xu, kaihua zhang, Kun Yu, Yufang Liu Analysis of Thermal Performance in a Two-phase Thermosyphon loop based on Flow Visualization and an Image Processing Technique Avinash Jacob Balihar, Arnab Karmakar, Avinash Kumar, Smriti Minj, P L John Sangso Investigation of the Effect of Dead State Temperature on the Performance of Boron Added Fuels and Different Fuels Used in an Internal Combustion Engine. Irfan UÇKAN, Ahmet Yakın, Rasim Behçet PREDICTION OF PARAMETERS OF BOILER SUPERHEATER BASED ON TRANSFER LEARNING METHOD Shuiguang Tong, Qi Yang, Zheming Tong, Haidan Wang, Xin Chen A temperature pre-rectifier with continuous heat storage and release for waste heat recovery from periodic flue gas Hengyu Qu, Binfan Jiang, Xiangjun Liu, Dehong Xia Study on the Influence of Multi-Frequency Noise on the Combustion Characteristics of Pool Fires in Ship Engine Rooms Zhilin Yuan, Liang Wang, Jiasheng Cao, Yunfeng Yan, Jiaqi Dong, Bingxia Liu, Shuaijun Wang Experimental study on two-phase nonlinear oscillation behavior of miniaturized gravitational heat pipe Yu Fawen, Chaoyang Zhang, Tong Li, Yuhang Zhang, Wentao Zheng Flow boiling heat transfer Coefficient used for the Design of the Evaporator of a Refrigeration Machine using CO2 as Working Fluid Nadim KAROUNE, Rabah GOMRI Analyzing The Heat and Flow Characteristics In Spray Cooling By Using An Optimized Rectangular Finned Heat Sink Altug Karabey, Kenan Yakut Thermal management of lithium-ion battery packs by using corrugated channels with nano-enhanced cooling Fatih Selimefendigil, Aykut Can, Hakan Öztop Convective heat transfer inside a rotating helical pipe filled with saturated porous media Krishan Sharma, Deepu P, Subrata Kumar Preparation method and thermal performance of a new ultra-thin flexible flat plate heat pipe Xuancong Zhang, Jinwang Li, Qi Chen Influence of Temperature Gradients and Fluid Vibrations on the Thermocapillary Droplet Behavior in a Rotating Cylinder Yousuf Alhendal The Effect of Corrugation on Heat Transfer and Pressure Drop in a Solar Air Heater: A Numerical Investigation Aneeq Raheem, Waseem Siddique, Shoaib A.Warraich, Khalid Waheed, Inam Ul Haq, Muhammad Tabish Raheem, Muhammad Muneeb Yaseen Investigation of the Effect of Using Different Nanofluids on the Performance of the Organic Rankine Cycle Meltem ARISU, Tayfun MENLİK Entropy generation and heat transfer performance of cylindrical tube heat exchanger with perforated conical rings: a numerical study Anitha Sakthivel, Tiju Thomas Molecular dynamics study of the thermal transport properties in the graphene/C3N multilayer in-plane heterostructures Junjie Zhu, Jifen Wang, Xinyi Liu, Kuan Zhao Flow boiling critical heat flux in a small tube for FC-72 Yuki Otsuki, Makoto Shibahara, Qiusheng Liu, Sutopo Fitri STUDY OF FORCED ACOUSTIC OSCILLATIONS INFLUENCE ON METHANE OXIDATION PROCESS IN OXYGEN-CONTAINING FLOW OF HYDROGEN COMBUSTION PRODUCTS Anastasiya Krikunova, Konstantin Arefyev, Ilya Grishin, Maxim Abramov, Vladislav Ligostaev, Evgeniy Slivinskii, Vitaliy Krivets Examining the Synergistic Use of East-West Reflector and Coal Cinder in Trapezoidal Solar Pond through Energy Analysis VINOTH KUMAR J, AMARKARTHIK ARUNACHALAM
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集 订购及政策 Begell House 联系我们 Language English 中文 Русский Português German French Spain