摘要
以鱼类尾鳍摆动式推进模式为背景,对二维刚性和柔性水翼摆动运动的非定常水动力性能开展了数值计算,将刚性水翼的计算结果与实验值进行了对比,吻合较好。运动边界采用动网格技术,湍流模型选用SST模型,柔性变形采用Bose模式,探讨了水翼瞬时攻角、及柔度对摆动水翼推进性能的影响。
The unsteady hydrodynamic characteristics of the 2-D rigid and flexible flapping foils are numerically studied based on the Carangiform swimming mode. The numerical results of rigid flapping foil are well in agreement with the experimental ones. The dynamic meshes for moving boundaries and SST k-w turbulence model are applied. The influence of the instantaneous angle of attack and ST on the performance of propulsion is investigated. In addition, the comparison of flexible and rigid flapping foils is conducted with the flexible mode proposed by Bose.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2006年第5期632-639,共8页
Chinese Journal of Hydrodynamics
关键词
摆动水翼
相当攻角
推进
flapping foil
equivalent angle of attack
propulsion
