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Journal of Enhanced Heat Transfer

年間 8 号発行

ISSN 印刷: 1065-5131

ISSN オンライン: 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

Determination of Optimal Row Spacing for a Staggered Cross-Pin Array in a Turbine Blade Cooling Passage

巻 8, 発行 1, 2001, pp. 41-53
DOI: 10.1615/JEnhHeatTransf.v8.i1.40
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要約

Crosspin configurations are of interest in turbine blade design due to the enhanced cooling they provide. In addition, crosspins which extend from the walls of hollow blades provide structural integrity and stiffness to the blade itself. Numerous crosspin shapes and arrangements are possible, but only certain combinations offer high heat transfer capability while maintaining low overall total pressure loss. This study presents results from 2-D numerical simulations of coolant airflow through a turbine blade internal cooling passage. The simulations model viscous flow and heat transfer over circular pins in a staggered arrangement of varying pin spacing. Preliminary analysis over a wide range of Reynolds numbers indicates existence of an optimal spacing for which maximum heat transfer and minimum total pressure drop occurs. Pareto plots, which graphically identify the optimum data points with multiple optimization parameters, were obtained for a range of Reynolds numbers and streamwise spacings in a staggered crosspin arrangement. There is a steady increase in crosspin heat transfer up to a certain number of rows, then a gradual decrease in heat transfer in subsequent rows. Knowledge obtained from such findings can be used to determine the number of crosspins used, as well as the ultimate pin arrangement.

によって引用された
  1. Al-Qahtani Mohammad S., Basha Mehaboob, Flow and Heat Transfer Prediction in Rotating Rectangular Pin-Fin Channels (AR = 10:1), Journal of Thermophysics and Heat Transfer, 21, 4, 2007. Crossref

  2. Bianchini C., Facchini B., Simonetti F., Tarchi L., Zecchi S., Numerical and Experimental Investigation of Turning Flow Effects on Innovative Pin Fin Arrangements for Trailing Edge Cooling Configurations, Journal of Turbomachinery, 134, 2, 2012. Crossref

  3. Goldstein R.J, Eckert E.R.G, Ibele W.E, Patankar S.V, Simon T.W, Kuehn T.H, Strykowski P.J, Tamma K.K, Heberlein J.V.R, Davidson J.H, Bischof J, Kulacki F.A, Kortshagen U, Garrick S, Heat transfer––a review of 2001 literature, International Journal of Heat and Mass Transfer, 46, 11, 2003. Crossref

  4. Hamilton Leonard, Gopinath Ashok, Numerical Analysis of Pin-Fin Heat Exchangers with Variable Axial Pitch and Pin Height Ratio, 2nd International Energy Conversion Engineering Conference, 2004. Crossref

  5. Beniaiche Ahmed, Ghenaiet Adel, Carcasci Carlo, Facchini Bruno, Experimental and numerical investigations of internal heat transfer in an innovative trailing edge blade cooling system: stationary and rotation effects, part 2: numerical results, Heat and Mass Transfer, 53, 2, 2017. Crossref

  6. Hamilton Leonard, Adametz Derek, Lind Eric, Gopinath Ashok, Numerical Analysis of the Performance of a Staggered Cross-Pin Array Heat Exchanger, 8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, 2002. Crossref

  7. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Wavy Fin, 3D Corrugated Fin, Perforated Fin, Pin Fin, Wire Mesh, Metal Foam Fin, Packings, Numerical Simulation, in Heat Transfer Enhancement in Plate and Fin Extended Surfaces, 2020. Crossref

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