Volume 11, Issue 4
Numerical Simulation of a Three-Dimensional Fish-Like Body Swimming with Finlets

Shizhao Wang, Xing Zhang & Guowei He

Commun. Comput. Phys., 11 (2012), pp. 1323-1333.

Published online: 2012-04

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  • Abstract

The swimming of a 3D fish-like body with finlets is numerically investigated at Re = 1000 (the Reynolds number is based on the uniform upstream flow and the length of the fish-like body). The finlets are simply modeled as thin rigid rectangular plates that undulate with the body. The wake structures and the flow around the caudal peduncle are studied. The finlets redirect the local flow across the caudal peduncle but the vortical structures in the wake are almost not affected by the finlets. Improvement of hydrodynamic performance has not been found in the simulation based on this simple model. The present numerical result is in agreement with that of the work of Nauen and Lauder [J. Exp. Biol., 204 (2001), pp. 2251-2263] and partially supports the hypothesis of Webb [Bull. Fish. Res. Bd. Can., 190 (1975), pp. 1-159].

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@Article{CiCP-11-1323, author = {}, title = {Numerical Simulation of a Three-Dimensional Fish-Like Body Swimming with Finlets}, journal = {Communications in Computational Physics}, year = {2012}, volume = {11}, number = {4}, pages = {1323--1333}, abstract = {

The swimming of a 3D fish-like body with finlets is numerically investigated at Re = 1000 (the Reynolds number is based on the uniform upstream flow and the length of the fish-like body). The finlets are simply modeled as thin rigid rectangular plates that undulate with the body. The wake structures and the flow around the caudal peduncle are studied. The finlets redirect the local flow across the caudal peduncle but the vortical structures in the wake are almost not affected by the finlets. Improvement of hydrodynamic performance has not been found in the simulation based on this simple model. The present numerical result is in agreement with that of the work of Nauen and Lauder [J. Exp. Biol., 204 (2001), pp. 2251-2263] and partially supports the hypothesis of Webb [Bull. Fish. Res. Bd. Can., 190 (1975), pp. 1-159].

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.090510.150511s}, url = {http://global-sci.org/intro/article_detail/cicp/7414.html} }
TY - JOUR T1 - Numerical Simulation of a Three-Dimensional Fish-Like Body Swimming with Finlets JO - Communications in Computational Physics VL - 4 SP - 1323 EP - 1333 PY - 2012 DA - 2012/04 SN - 11 DO - http://dor.org/10.4208/cicp.090510.150511s UR - https://global-sci.org/intro/article_detail/cicp/7414.html KW - AB -

The swimming of a 3D fish-like body with finlets is numerically investigated at Re = 1000 (the Reynolds number is based on the uniform upstream flow and the length of the fish-like body). The finlets are simply modeled as thin rigid rectangular plates that undulate with the body. The wake structures and the flow around the caudal peduncle are studied. The finlets redirect the local flow across the caudal peduncle but the vortical structures in the wake are almost not affected by the finlets. Improvement of hydrodynamic performance has not been found in the simulation based on this simple model. The present numerical result is in agreement with that of the work of Nauen and Lauder [J. Exp. Biol., 204 (2001), pp. 2251-2263] and partially supports the hypothesis of Webb [Bull. Fish. Res. Bd. Can., 190 (1975), pp. 1-159].

Shizhao Wang, Xing Zhang & Guowei He. (2020). Numerical Simulation of a Three-Dimensional Fish-Like Body Swimming with Finlets. Communications in Computational Physics. 11 (4). 1323-1333. doi:10.4208/cicp.090510.150511s
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