Shape Design and Hydrodynamic Analysis of a Tuna-type Bionic Fish
ZHANG Shuai
DENG Fang
DU Zhiyu
DING Qiang
YANG Hualin
Abstract：From the perspective of hydrodynamic theory,the fish body thrust and water resistance form a balanced force sys-tem in the fish cruising state.In order to obtain a bionic fish body shape with excellent hydrodynamic performance,this paper takes the rotary body line shape as the basis,realises the parametric construction of various fish body models and carries out the calcula-tion of resistance analysis,and then designs a fish body line shape with excellent resistance performance accordingly.Combining theoretical analysis and biological research,the design of caudal fin parameters is completed and hydrodynamic analysis is carried out to determine the optimal combination.The overall drag force of the bionic fish is estimated using empirical formulae and verified by simulation,and the results confirm that the designed bionic fish shape has excellent drag performance.
Keywords：yellowfin tunatransforming bodycaudal fin hydrodynamicsbionic robotic fish
Publication Date：2025-01-19
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 83-89 )