Biomimetic Design for Enhanced Thermal Performance of Vapor Chambers

Jingyu Shen and Ce Guo ()
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Jingyu Shen: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Ce Guo: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Energies, 2025, vol. 18, issue 5, 1-22

Abstract: Vapor chambers (VCs) are efficient heat spreaders that rely on wicks to realize the circulation of a phase-changing working liquid and can be used to address heat dissipation problems in electronic devices, aerospace, and satellite equipment. In this study, we propose a novel vapor chamber with biomimetic wick structures and composite lattice supports to enhance the thermal management and load-bearing performance of vapor chambers. The experiments and COMSOL multiphysics 6.1 simulation results indicate that the biomimetic design can improve the startup performance, thermal management, and load-bearing performance of the VC. Compared to conventional VCs, at a filling ratio of 20% the biomimetic VC reduces the time to reach a steady state by 11.7% and improves the uniformity of temperature by 7.74%. This study provides a novel design concept for VCs and verifies the operating performance of vapor in high heat flux density cases, providing a reference for the innovative design and enhanced heat transfer of phase change-based thermal management equipment.

Keywords: vapor chamber; thermal performance; multiphysics simulation; biomimetic design (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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