Journal of Bionic Engineering ›› 2023, Vol. 20 ›› Issue (1): 338-348.doi: 10.1007/s42235-022-00247-4

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Bio-inspired Filter Design Based on Vortex Control Mechanism of Parallel Groove Structure

Yawei Zhu1; Dean Hu2; Yonggang Guo1; Hao Ding1; Gang Yang2   

  1. 1 School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China  2 Key Laboratory of Advanced Design and Simulation Techniques for Special Equipments, Ministry of Education, Hunan University, Changsha 410082, China
  • 出版日期:2023-01-10 发布日期:2023-02-16
  • 通讯作者: Yawei Zhu E-mail:yaweizhu@haut.edu.cn
  • 作者简介:Yawei Zhu1; Dean Hu2; Yonggang Guo1; Hao Ding1; Gang Yang2

Bio-inspired Filter Design Based on Vortex Control Mechanism of Parallel Groove Structure

Yawei Zhu1; Dean Hu2; Yonggang Guo1; Hao Ding1; Gang Yang2   

  1. 1 School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China  2 Key Laboratory of Advanced Design and Simulation Techniques for Special Equipments, Ministry of Education, Hunan University, Changsha 410082, China
  • Online:2023-01-10 Published:2023-02-16
  • Contact: Yawei Zhu E-mail:yaweizhu@haut.edu.cn
  • About author:Yawei Zhu1; Dean Hu2; Yonggang Guo1; Hao Ding1; Gang Yang2

摘要: Solid–liquid separation is widely used in daily life and practical engineering. Traditional industrial filters are prone to clogging, but this rarely occurs in filter-feeding organisms. Inspired by the filter feeding mechanism of balaenid whales and considering the local grooves in the fringes layer, a new bionic filter is produced by 3D printing technology through the bionic design of the parallel channels inside the mouth of balaenid whales. At the same time, a test platform composed of the bionic filter, peristaltic pump, fluid pulse rectifier and water tank is built to carry out the fluid flow pattern dyeing and particle filtration experiments. It is found that fluid separation occurs near the groove structure and local vortices are generated. The vortex control filtration mechanism makes the particles in the front grooves tend to accumulate on the left side, which has a certain anti-clogging effect. Moreover, the increase of flow velocity leads to the enhancement of vortices, which makes the accumulation effect on the left more obvious. This study initially practices the bionic application from biological model to engineering design, and the vortex control anti-clogging filtration mechanism proposed in the study has a wide range of application prospects and values.

关键词: Solid–liquid separation , · Balaenid whales , · Filter feeding , · Bionic design , · Anti-clogging filtration mechanism

Abstract: Solid–liquid separation is widely used in daily life and practical engineering. Traditional industrial filters are prone to clogging, but this rarely occurs in filter-feeding organisms. Inspired by the filter feeding mechanism of balaenid whales and considering the local grooves in the fringes layer, a new bionic filter is produced by 3D printing technology through the bionic design of the parallel channels inside the mouth of balaenid whales. At the same time, a test platform composed of the bionic filter, peristaltic pump, fluid pulse rectifier and water tank is built to carry out the fluid flow pattern dyeing and particle filtration experiments. It is found that fluid separation occurs near the groove structure and local vortices are generated. The vortex control filtration mechanism makes the particles in the front grooves tend to accumulate on the left side, which has a certain anti-clogging effect. Moreover, the increase of flow velocity leads to the enhancement of vortices, which makes the accumulation effect on the left more obvious. This study initially practices the bionic application from biological model to engineering design, and the vortex control anti-clogging filtration mechanism proposed in the study has a wide range of application prospects and values.

Key words: Solid–liquid separation , · Balaenid whales , · Filter feeding , · Bionic design , · Anti-clogging filtration mechanism