生态学报2026，Vol.46Issue(8)：4409-4420,12.DOI:10.20103/j.stxb.202506101456
基于预应变的鱼类自主推进游泳行为仿真方法
A pre-strain based simulation method for self-propelled swimming behavior of fish
摘要
Abstract
Fish exhibit excellent swimming performance characterized by high maneuverability,low energy consumption,and high efficiency.Investigating their locomotion mechanisms under diverse flow environments is of great significance for both biomimetic applications and ecological conservation.In this study,the swimming behaviors of Crucian Carp were recorded in various flow fields using high-speed photography,and the body deformation profiles and kinematic parameters were extracted through image processing.Based on these data,a pre-strain-driven numerical model was developed in COMSOL Multiphysics to simulate the muscle contraction process,thereby enabling the reproduction of self-propelled swimming behaviors.The simulations successfully reproduced the processes of fish cruising in uniform flow,Kármán gaiting in a vortex street,and turning maneuvers in still water.The results showed that under the prescribed muscle contraction pattern,the fish reached a steady cruising speed of 0.26 m/s with propulsion and drag balanced;in the Kármán vortex street,fish's swimming cycle synchronized with vortex shedding;and in still water,a large-angle turning of 240° was achieved within 1 s.The computed trajectories,swimming speeds,locomotion modes,hydrodynamic characteristics,and surrounding flow structures were all qualitatively consistent with experimental observations,demonstrating the feasibility and applicability of the proposed method.This approach provided an effective tool for analyzing fluid-structure interactions and locomotion mechanics of aquatic organisms under various flow conditions,offering valuable support for behavioral prediction,ecological mechanism studies,and conservation strategy development.关键词
鱼游/预应变/自主推进/数值模拟/卡门步态Key words
fish swimming/pre-strain/autonomous propulsion/numerical simulation/Karman gait引用本文复制引用
王思莹,高鸫晋,王凯辉,段永彬,郭辉..基于预应变的鱼类自主推进游泳行为仿真方法[J].生态学报,2026,46(8):4409-4420,12.基金项目
国家自然科学基金联合基金项目(U2340218) （U2340218）
中央高校基本科研业务费项目(武汉理工大学104972025KFYjc0080) （武汉理工大学104972025KFYjc0080）
中央级公益性科研院所基本科研业务费项目(长江科学院CKSF2025530/SL) （长江科学院CKSF2025530/SL）
