光学精密工程2024，Vol.32Issue(11)：1736-1745,10.DOI:10.37188/OPE.20243211.1736
大尺寸仿猪笼草口缘区结构半圆管形微流道设计
Design of large-scale semi-circular tube flow microchannel imitating peristome structure of nepenthes alata
摘要
Abstract
Addressing the challenge of uni-directional fluid flow without power input in a semi-circular tu-bular microchannel,a large-scale model inspired by the Nepenthes alata peristome was designed and fabri-cated,with a scale of 100 μm.The mechanism behind the uni-directional liquid spreading was examined,leading to the design of a semi-circular tube structure featuring the Nepenthes alata peristome surface.A digital light processing 3D printer using a photocuring method was employed to create the workpiece.Ex-perimental studies were conducted to observe the uni-directional spreading of liquid within this large-scale semi-circular tubular microchannel.By calculating the range,various structural parameters'influence on the liquid's uni-directional spreading performance was quantified.Results indicate that the semi-circular tu-bular microchannel,characterized by factors such as the ellipse's semi-major axis of 570 μm,microcavity wedge of 30°,microchannel width of 320 μm,structural length of 360 μm,stretching length of 200 μm,and curvature of 2,showed superior uni-directional spreading performance.The influence of each factor on the spreading coefficient,ranked from smallest to largest,was stretching length,structure length,micro-cavity wedge,semi-major axis of the ellipse,microchannel width,and curvature.These findings offer es-sential guidance for the design parameters of large-size semi-circular tubular microchannels with a Nepen-thes alata peristome structure and also confirm the feasibility of using conventional 3D printing technology to create microchannels with uni-directional fluid spreading.关键词
微流道/3D打印/猪笼草口缘区/单向铺展性/开放式半圆管型Key words
microchannels/3D printing/nepenthes alata peristome/uni-directional spreading perfor-mance/open semi-circular tubular引用本文复制引用
陈飞昊,姜晨,郝宇,许世炜..大尺寸仿猪笼草口缘区结构半圆管形微流道设计[J].光学精密工程,2024,32(11):1736-1745,10.基金项目
国家自然科学基金资助项目(No.51475310) （No.51475310）
