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Physical quantity synergy in laminar flow field of convective heat transfer and analysis of heat transfer enhancement

  • Articles/Engineering Thermophysics
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Chinese Science Bulletin

Abstract

Based on the principle of field synergy for heat transfer enhancement, the concept of physical quantity synergy in the laminar flow field is proposed in the present study according to the physical mechanism of convective heat transfer between fluid and tube wall. The synergy regulation among physical quantities of fluid particle is revealed by establishing formulas reflecting the relation between synergy angles and heat transfer enhancement. The physical nature of enhancing heat transfer and reducing flow resistance, which is directly associated with synergy angles α, β, γ, φ, θ and ψ, is also explained. Besides, the principle of synergy among physical quantities is numerically verified by the calculation of heat transfer and flow in a thin cylinder-interpolated tube, which may guide the optimum design for better heat transfer unit and high-efficiency heat exchanger.

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Authors and Affiliations

  1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Wei Liu & ZhiChun Liu

  2. School of Aerospace, Tsinghua University, Beijing, 100084, China

    ZengYuan Guo

Authors
  1. Wei Liu
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  2. ZhiChun Liu
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  3. ZengYuan Guo
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Corresponding author

Correspondence to Wei Liu.

Additional information

Supported by the National Basic Research Program of China (Grant No. 2007CB206903) and National Natural Science Foundation of China (Grant No. 50721005)

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Liu, W., Liu, Z. & Guo, Z. Physical quantity synergy in laminar flow field of convective heat transfer and analysis of heat transfer enhancement. Chin. Sci. Bull. 54, 3579–3586 (2009). https://doi.org/10.1007/s11434-009-0223-2

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  • DOI: https://doi.org/10.1007/s11434-009-0223-2

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