Nature-Inspired Structures Applied in Heat Transfer Enhancement and Drag Reduction

Heat exchangers are general equipment for energy exchange in the industrial field. Enhancing the heat transfer of a heat exchanger with low pump energy consumption is beneficial to the maximum utilization of energy. The optimization design for enhanced heat transfer structure is an effective method...

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Published inMicromachines (Basel) Vol. 12; no. 6; p. 656
Main Authors Zhu, Zhangyu, Li, Juan, Peng, Hao, Liu, Dongren
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 03.06.2021
MDPI
Subjects
biomimetic structure
Biomimetics
Bridges
Columnar structure
Contact angle
Design optimization
Drag reduction
Efficiency
Energy
Energy consumption
Energy utilization
Flow resistance
Fractals
Heat exchange
heat exchanger
Heat exchangers
Heat transfer
Heat transfer coefficients
heat transfer enhancement
Hydrophobic surfaces
Hydrophobicity
Interdisciplinary subjects
Laser processing
Machining
optimal design
Photolithography
Review
Three dimensional printing
Wetting
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Summary:Heat exchangers are general equipment for energy exchange in the industrial field. Enhancing the heat transfer of a heat exchanger with low pump energy consumption is beneficial to the maximum utilization of energy. The optimization design for enhanced heat transfer structure is an effective method to improve the heat transfer coefficient. Present research shows that the biomimetic structures applied in different equipment could enhance heat transfer and reduce flow resistance significantly. Firstly, six biomimetic structures including the fractal-tree-like structure, conical column structure, hybrid wetting structure, scale structure, concave-convex structure and superhydrophobic micro-nano structure were summarized in this paper. The biomimetic structure characteristics and heat transfer enhancement and drag reduction mechanisms were analyzed. Secondly, four processing methods including photolithography, nanoimprinting, femtosecond laser processing and 3D printing were introduced as the reference of biomimetic structure machining. Finally, according to the systemic summary of the research review, the prospect of biomimetic heat transfer structure optimization was proposed.
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ISSN:2072-666X
2072-666X
DOI:10.3390/mi12060656