Volume 6, Issue 4
Numerical Investigation of the Dynamics of a Flexible Filament in the Wake of Cylinder

Ru-Nan Hua, Luoding Zhu & Xi-Yun Lu

Adv. Appl. Math. Mech., 6 (2014), pp. 478-493.

Published online: 2014-06

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  • Abstract

Fluid-structure-interaction problems are ubiquitous, complicated, and not yet well understood. In this paper we investigate the interaction of a leading rigid circular cylinder and a trailing compliant filament and analyze the dynamic responses of the filament in the wake of the cylinder. It is revealed that there exist two flapping states of the filament depending on the cylinder-filament separation distance and the relevant critical distance distinguishing the two states is associated with the Reynolds number and the filament length. It is also found that the drag coefficient of the cylinder is reduced but that of the filament may be increased or decreased depending on its length. Compared with a single filament in a uniform flow, the filament of the same mechanical properties flapping in the wake of the cylinder has a lower frequency and a greater amplitude.

  • Keywords

Fluid-structure interaction immersed boundary-lattice Boltzmann method

  • AMS Subject Headings

74K20 76D05 76Z10

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{AAMM-6-478, author = {Ru-Nan Hua, Luoding Zhu and Xi-Yun Lu}, title = {Numerical Investigation of the Dynamics of a Flexible Filament in the Wake of Cylinder}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2014}, volume = {6}, number = {4}, pages = {478--493}, abstract = {

Fluid-structure-interaction problems are ubiquitous, complicated, and not yet well understood. In this paper we investigate the interaction of a leading rigid circular cylinder and a trailing compliant filament and analyze the dynamic responses of the filament in the wake of the cylinder. It is revealed that there exist two flapping states of the filament depending on the cylinder-filament separation distance and the relevant critical distance distinguishing the two states is associated with the Reynolds number and the filament length. It is also found that the drag coefficient of the cylinder is reduced but that of the filament may be increased or decreased depending on its length. Compared with a single filament in a uniform flow, the filament of the same mechanical properties flapping in the wake of the cylinder has a lower frequency and a greater amplitude.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.2013.m408}, url = {http://global-sci.org/intro/article_detail/aamm/30.html} }
TY - JOUR T1 - Numerical Investigation of the Dynamics of a Flexible Filament in the Wake of Cylinder AU - Ru-Nan Hua, Luoding Zhu & Xi-Yun Lu JO - Advances in Applied Mathematics and Mechanics VL - 4 SP - 478 EP - 493 PY - 2014 DA - 2014/06 SN - 6 DO - http://doi.org/10.4208/aamm.2013.m408 UR - https://global-sci.org/intro/article_detail/aamm/30.html KW - Fluid-structure interaction KW - immersed boundary-lattice Boltzmann method AB -

Fluid-structure-interaction problems are ubiquitous, complicated, and not yet well understood. In this paper we investigate the interaction of a leading rigid circular cylinder and a trailing compliant filament and analyze the dynamic responses of the filament in the wake of the cylinder. It is revealed that there exist two flapping states of the filament depending on the cylinder-filament separation distance and the relevant critical distance distinguishing the two states is associated with the Reynolds number and the filament length. It is also found that the drag coefficient of the cylinder is reduced but that of the filament may be increased or decreased depending on its length. Compared with a single filament in a uniform flow, the filament of the same mechanical properties flapping in the wake of the cylinder has a lower frequency and a greater amplitude.

Ru-Nan Hua, Luoding Zhu & Xi-Yun Lu. (1970). Numerical Investigation of the Dynamics of a Flexible Filament in the Wake of Cylinder. Advances in Applied Mathematics and Mechanics. 6 (4). 478-493. doi:10.4208/aamm.2013.m408
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