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Heat transfer characteristics of laminar flow in internally finned tubes under various boundary conditions

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Abstract

Numerical solutions for fully developed laminar flow in internally finned tubes with trapezoidal and triangular fin profiles were given with Finite Element Method (FEM): The heat transfer characteristics were obtained and compared under the boundary conditions of uniform heat flux, uniform wall temperature, and the third boundary condition with finite wall thermal conductivity considered. The numerical results show that boundary conditions have pronounced effects on the temperature field. Furthermore, a new mechanism on the heat transfer augmentation of internally finned tubes is proposed.

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Authors and Affiliations

  1. Department of Power Engineering, Southeast University, 210018, Nanjing, China

    Ze-Ning Wang & Qiang-Tai Zhou

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  1. Ze-Ning Wang
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  2. Qiang-Tai Zhou
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Wang, ZN., Zhou, QT. Heat transfer characteristics of laminar flow in internally finned tubes under various boundary conditions. J. of Thermal Science 3, 103–109 (1994). https://doi.org/10.1007/BF02653097

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  • DOI: https://doi.org/10.1007/BF02653097

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