Ming Chen, Laibing Jia, Xiezhen Yin Department of Modern Mechanics, University of Science and Technology of China, Hefei Anhui, 230027
Fins and wings are the key propellers for fish and insect respectively. To study the mechanism of animal locomotion, the fins and wings are simplified as models of rigid or flexible beams. In this paper we simulated the analogy system of a flexible beam immersed in a uniform stream and studied the effect of the internal viscoelasticity on the system. Results show that the viscous component of the beam decreased the mechanical energy of the beam. With the internal viscosity increasing, the energy dissipation rate of the beam firstly increases and then decreases.
Effect of internal viscoelasticity on passive kinematics of a beam in a two-dimension inviscid flow;
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