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Analysis of the caudal vortices evolvement around flapping foil

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Abstract

The viscous flow field around two-dimensional flapping (heaving and pitching) foils was numerically computed. The structural characteristics of caudal vortices were investigated and the contour curves at different phase angles were obtained. The relationships between the structural characteristics of the vortices and the force acting on the foil and between the widths of the caudal vortex street and of the caudal flow field were analyzed. A method to determine the shedding frequency of the vortices was proposed.

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Authors and Affiliations

  1. College of Naval Architecture and Ocean Engineering, Jiangsu Scientific and Technology University, 212003, Zhenjiang, P. R. China

    Zhi-dong Wang & Xiao-qing Zhang

  2. College of Naval Architecture, Harbin Engineering University, 150001, Harbin, P. R. China

    Yu-min Su & Yu-ru Xu

Authors
  1. Zhi-dong Wang
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  2. Xiao-qing Zhang
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  3. Yu-min Su
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  4. Yu-ru Xu
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Correspondence to Zhi-dong Wang.

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Wang, Zd., Zhang, Xq., Su, Ym. et al. Analysis of the caudal vortices evolvement around flapping foil. J Bionic Eng 2, 195–201 (2005). https://doi.org/10.1007/BF03399496

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  • DOI: https://doi.org/10.1007/BF03399496

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