Experimental Study and Hydrodynamic Performance Analysis of a Bio-Tail Fin Propellant System
In order to research the bionic mechanics in unsteady flow and the hydrodynamic performance of the oscillating tail fin, in this paper, an experimental device imitating bionic tail fin were built, the design concepts and the rolling systems of the mechanical tail fins were demonstrated, including the procedures and correlated works on the selection of the servo motors, online control and signal data collecting and processing. The movements of the mechanical tail fin could be optimized by the comparisons of the propulsion efficiency, thrust coefficient, lateral force coefficient and torque coefficient at different conditions. Meanwhile, error analysis is carried out to correct the movement curves and obtain more precise experimental data and results.
Daizhong Su, Qingbin Zhang and Shifan Zhu
Y. M. Su et al., "Experimental Study and Hydrodynamic Performance Analysis of a Bio-Tail Fin Propellant System", Key Engineering Materials, Vols. 419-420, pp. 77-80, 2010