Fish's muscles distortion and pectoral fins propulsion of lift-based mode

摘要

According to the character of skeletons and muscles of cownose ray( Rhinoptera bonasus) in morphology, this study puts forward the pattern of muscles distortion of pectoral fins and simulates the kinematics of fish’s pectoral fins lift-based mode. In the symmetrical fluid field, the model is simulated left-right symmetrically or asymmetrically. The results qualitatively show how muscles distortion determines the performance of fish. Finally the efficient muscles distortion associated with the preliminary dynamics is induced.