Numerical simulation on drag reduction characteristics of concave corner microstructure of springtail cuticle

Benshuai Fu; Haiyan Xiao; Bingju Lu; Liping Qin; Guanghua Li

doi:10.1117/12.2640807

20 September 2022 Numerical simulation on drag reduction characteristics of concave corner microstructure of springtail cuticle

Benshuai Fu, Haiyan Xiao, Bingju Lu, Liping Qin, Guanghua Li

Author Affiliations +

Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 1226140 (2022) https://doi.org/10.1117/12.2640807
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China

Abstract

Underwater drag reduction technology is one of the key ways to break through the ocean-going problem, and the bionic drag reduction is very promising in many types of drag reduction method. The bionic drag reduction is using the gasliquid interface slip effect, while the film is very unstable, leading to drag reduction function failure. The concave corner microstructure of springtail cuticle can make the air retention, which has very important significance to solve the problem of instability of gas film. In this paper, a simplified model is established by referring to the concave corner microstructures of springtail cuticle. The k-ε turbulence model is coupled with VOF method is used to establish a simulation model. The simulation results show that: with the increase in free shear area ratio, the drag reduction rate of the microstructure increases; the drag reduction rate of different microstructure is slightly different, but it is mainly related to the free shear area ratio.

Citation Download Citation

Benshuai Fu, Haiyan Xiao, Bingju Lu, Liping Qin, and Guanghua Li "Numerical simulation on drag reduction characteristics of concave corner microstructure of springtail cuticle", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 1226140 (20 September 2022); https://doi.org/10.1117/12.2640807

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available