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ISSN 打印: 1065-5131

ISSN 在线: 1563-5074

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Indexed in

Numerical Investigation of Turbulent Flow and Heat Transfer in Internally Finned Tubes

卷 6, 册 2-4, 1999, pp. 105-119
DOI: 10.1615/JEnhHeatTransf.v6.i2-4.50
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摘要

A numerical investigation of periodically fully developed, steady, single-phase, turbulent flow and heat transfer in two spirally finned tubes has been first performed. A two-layer turbulence model was applied to model the near-wall turbulence. An unstructured finite-volume method was employed to resolve the complex geometry of internally finned tubes. The effects of grid independence and skewness were extensively examined. In the range of 6,000 < Re < 70,000 and Pr = 4, the length-averaged friction factors and Nusselt numbers were compared with the experimental data of Vlakancic (1996) to validate the accuracy of the turbulence model and numerical method. The computational results match well with the experimental data. Circumferential local friction factors and Nusselt numbers are presented. These results indicate that spiral fins deliver 37% to 50% of the total heat transfer, and the pressure resistance from the leeward and windward sides of the fins is about 30% to 44% of total friction resistance.

对本文的引用
  1. Wang Qiu-Wang, Lin Mei, Zeng Min, Tian Lin, Investigation of Turbulent Flow and Heat Transfer in Periodic Wavy Channel of Internally Finned Tube With Blocked Core Tube, Journal of Heat Transfer, 130, 6, 2008. Crossref

  2. Liu Xiaoyue , Jensen Michael K. , Geometry Effects on Turbulent Flow and Heat Transfer in Internally Finned Tubes , Journal of Heat Transfer, 123, 6, 2001. Crossref

  3. Wang Qiu-Wang, Lin Mei, Zeng Min, Tian Lin, Computational analysis of heat transfer and pressure drop performance for internally finned tubes with three different longitudinal wavy fins, Heat and Mass Transfer, 45, 2, 2008. Crossref

  4. Khdher AbdolBaqi Mohammed, Sidik Nor Azwadi Che, Mamat Rizalman, Hamzah Wan Azmi Wan, Experimental and numerical study of thermo-hydraulic performance of circumferentially ribbed tube with Al2O3 nanofluid, International Communications in Heat and Mass Transfer, 69, 2015. Crossref

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  6. Zdaniuk Gregory J., Chamra Louay M., Mago Pedro J., Experimental determination of heat transfer and friction in helically-finned tubes, Experimental Thermal and Fluid Science, 32, 3, 2008. Crossref

  7. Li Wei, Webb Ralph L., Fouling characteristics of internal helical-rib roughness tubes using low-velocity cooling tower water, International Journal of Heat and Mass Transfer, 45, 8, 2002. Crossref

  8. Wang Qiu-Wang, Lin Mei, Zeng Min, Effect of lateral fin profiles on turbulent flow and heat transfer performance of internally finned tubes, Applied Thermal Engineering, 29, 14-15, 2009. Crossref

  9. Kim Je-Hoon, Jansen Kenneth E., Jensen Michael K., ANALYSIS OF HEAT TRANSFER CHARACTERISTICS IN INTERNALLY FINNED TUBES, Numerical Heat Transfer, Part A: Applications, 46, 1, 2004. Crossref

  10. Lin M., Tian L., Wang Q. W., Laminar heat transfer characteristics of internally finned tube with sinusoidal wavy fin, Heat and Mass Transfer, 47, 6, 2011. Crossref

  11. Jain Abhishek, Kaminski Deborah A., Effect of fin number and position on thermal behavior of natural convection in enclosed cavity using fuzzy controller algorithm, 2007 IEEE Symposium on Foundations of Computational Intelligence, 2007. Crossref

  12. Kim Je-Hoon, Jansen Kenneth E., Jensen Michael K., SIMULATION OF THREE-DIMENSIONAL INCOMPRESSIBLE TURBULENT FLOW INSIDE TUBES WITH HELICAL FINS, Numerical Heat Transfer, Part B: Fundamentals, 46, 3, 2004. Crossref

  13. Li Wei, Fu Ping, Li Hongxia, Li Guanqiu, Thors Petur, Numerical–Theoretical Analysis of Heat Transfer, Pressure Drop, and Fouling in Internal Helically Ribbed Tubes of Different Geometries, Heat Transfer Engineering, 37, 3-4, 2016. Crossref

  14. Mann Garrett W., Eckels Steven, Multi-objective heat transfer optimization of 2D helical micro-fins using NSGA-II, International Journal of Heat and Mass Transfer, 132, 2019. Crossref

  15. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Round Tubes Having Plain-Plate Fins, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref

  16. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Internally Finned Tubes and Spirally Fluted Tubes, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref

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