A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure

Zhao, Pengfei; Li, Xin; Luo, Zhengjie; Zhai, Qihang; Tian, Ye; Zhang, Kaisheng; Guo, Hao

doi:10.3390/mi15030364

Open AccessArticle

A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure

by

Pengfei Zhao

^1,†,

Xin Li

^1,†

,

Zhengjie Luo

¹,

Qihang Zhai

¹,

Ye Tian

¹

,

Kaisheng Zhang

^2,3,* and

Hao Guo

^1,*

¹

State Key Laboratory of Dynamic Measurement Technology, Shanxi Province Key Laboratory of Quantum Sensing and Precision Measurement, North University of China, Taiyuan 030051, China

²

Department of Mechanical and Electrical Engineering, College of Engineering, Ocean University of China, Qingdao 266100, China

³

Key Laboratory of Ocean Engineering of Shandong Province, Ocean University of China, Qingdao 266100, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work and should be considered co-first authors.

Micromachines 2024, 15(3), 364; https://doi.org/10.3390/mi15030364

Submission received: 27 January 2024 / Revised: 26 February 2024 / Accepted: 29 February 2024 / Published: 6 March 2024

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Abstract

Efforts to enhance the speed and reduce the energy consumption of underwater vehicles have led to the proposal of a novel mucus release structure inspired by the secretion of mucus cells on fish skin. This structure features interconnected microgrooves with excellent flexibility for adjusting to different states, effectively reducing drag through mucus release. Numerical analysis of the drag reduction performance of the mucous-releasing micro-pore structure was conducted using ANSYS Fluent 19.2 software. This structure is capable of reducing the velocity gradient near the wall and, owing to the presence of micro-pore structures, decreasing the overall compressed area, thereby achieving drag reduction effects. The experimental results revealed a drag reduction effect of 20.56% when the structure was bent at an angle of 120°. The drag reduction varied under different attitudes such as tension and compression. This mucus release structure achieves reusability through a direct mucous injection process. This research provides valuable insights for the drag reduction study of underwater vehicles, such as ships and submarines, laying a foundation for advancing the development and applications of this field in the future.

Keywords: fish skin mucus; drag reduction property; bionic design

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MDPI and ACS Style

Zhao, P.; Li, X.; Luo, Z.; Zhai, Q.; Tian, Y.; Zhang, K.; Guo, H. A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure. Micromachines 2024, 15, 364. https://doi.org/10.3390/mi15030364

AMA Style

Zhao P, Li X, Luo Z, Zhai Q, Tian Y, Zhang K, Guo H. A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure. Micromachines. 2024; 15(3):364. https://doi.org/10.3390/mi15030364

Chicago/Turabian Style

Zhao, Pengfei, Xin Li, Zhengjie Luo, Qihang Zhai, Ye Tian, Kaisheng Zhang, and Hao Guo. 2024. "A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure" Micromachines 15, no. 3: 364. https://doi.org/10.3390/mi15030364

APA Style

Zhao, P., Li, X., Luo, Z., Zhai, Q., Tian, Y., Zhang, K., & Guo, H. (2024). A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure. Micromachines, 15(3), 364. https://doi.org/10.3390/mi15030364

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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A Bio-Inspired Drag Reduction Method of Bionic Fish Skin Mucus Structure

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