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Journal of Bionic Engineering ›› 2020, Vol. 17 ›› Issue (5): 909-919.doi: 10.1007/s42235-020-0084-6

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Hydrodynamic Perception Using an Artificial Lateral Line Device with an Optimized Constriction Canal

Zhiqiang Ma1, Yonggang Jiang1*, Zihao Dong1, Zhiwu Han2, Deyuan Zhang1,3   

  1. 1. Institute of Bionic and Micro-Nano Systems, School of Mechanical Engineering and Automation, Beihang University, 
    Beijing 100191, China
    2. Key Laboratory for Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
    3. Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
  • Received:2020-04-14 Revised:2020-05-12 Accepted:2020-06-20 Online:2020-09-10 Published:2020-08-26
  • Contact: Yonggang Jiang E-mail:jiangyg@buaa.edu.cn
  • About author:Zhiqiang Ma1, Yonggang Jiang1*, Zihao Dong1, Zhiwu Han2, Deyuan Zhang1,3

Abstract: To perform flow-related behaviors in darkness, blind cavefish have evolved Lateral Line Systems (LLSs) with constriction canals to enhance hydrodynamic sensing capabilities. Mimicking the design principles, we developed a Canal-type Artificial Lateral Line (CALL) device featuring a biomimetic constriction canal. The hydrodynamic characterization results revealed that the sensitivity of the canal LLS increases with the decrease in the width (from 1 mm to 0.6 mm) and length (from 3 mm to 1 mm) of the constriction canal, which is in accordance with the modeling results of canal mechanics. The CALL device was characterized in Kármán vortex streets generated by a cylinder in a laminar flow. The CALL device was able to identify the diameter of the cylinder, with a mean identification error of approximately 2.5%. It also demonstrated the identification ability of wake width using the CALL device, indicating the potential for application in hydrodynamic perception.

Key words: lateral line, constriction canal, biomimetics, flow sensor, hydrodynamic perception