Bionic design and analysis of 3D-printed lattice structure wicks for heat pipe application

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-03-04 DOI:10.1016/j.csite.2025.105967

Jingyu Shen , Ce Guo

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引用次数: 0

Abstract

Recently, the metal 3D-printed lattice has been used as the heat pipe wick, which can be flexibly applied to complex heat dissipation conditions. The wick with both great capillarity and permeability shows better hydraulic performance, which is difficult for the existing wicks to ensure simultaneously. Herein, inspired by the plant transport structure, this study designed and investigated the biomimetic lattice (face centered hexagon cubic, FCHC) with both excellent capillary and permeability properties. Through theoretical derivation, numerical analysis, and experimental research, the permeability, capillary transport capacity, and capillary performance parameter (

K / r_{e f f}

) of six configurations of lattice structures (SC, BCC, FCC, BCCZ, FCCZ, FCHC) were analyzed. These lattice structures are 1 × 8 × 20 arrays of unit cells (1.5mm × 1.5mm × 1.5 mm), and each type is configured with four different porosity levels (40 %, 50 %, 60 %, 70 %). The biomimetic lattice exhibits the best capillary performance obtained using theoretical analysis or mass-based capillary rise experiment, with the average

K / r_{e f f}

parameters being 134.7 % and 139.8 % higher than that of the current commonly used SC lattice, which verifies the excellence of biomimetic lattice structures. This study provides ideas and methodologies for the optimized design of the 3D-printed metal lattice wick for heat pipe applications, and offers a reference for the rapid and low-cost analysis of their hydraulic performance.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.