Fish-like swimming in oblique flows: A numerical investigation
Fish-like swimming in oblique flows: A numerical investigation
复制标题
斜流中的鱼状游动:数值研究
DOI:
10.1016/j.oceaneng.2021.109005
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发表时间:
2021-06
影响因子:
5
通讯作者:
T. Q. Li
中科院分区:
文献类型:
--
作者:
J. Y. Shao;T. Q. Li
Although being a common situation for fish and underwater vehicles, limited research has been reported for a fish-like body swimming in oblique incoming flows. The present work employs the immersed boundary-lattice Boltzmann method to numerically study the dynamics of this problem. A more comprehensive analysis method, which utilizes the effective force parameters that consolidate the angle of attack (AOA) into the traditional force parameters, is proposed for investigating the dynamics of cases with non-zero AOA. Several distinct features in terms of the dynamic performance, the periodic features, and the flow field characteristics are presented. For the dynamic performance, undulation amplitude plays a more dominant role than the undulation form in thrust generation. The periodic features revealed by the Fourier spectra present increasing complexity with larger AOA. Besides, three flow regimes are identified, one of which observes hierarchical vortex structures with different orders in time and space. The small-scale vortex street generated by undulation is “local” in both time and space, and it is embedded in the large scale vortex street generated by the body and the free-stream.
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DOI:
10.1103/physreve.65.036708
发表时间:
2002-03
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Chi-Wang Shu;X. Niu;Y. Chew
通讯作者:
Chi-Wang Shu;X. Niu;Y. Chew
DOI:
--
发表时间:
1985-11
期刊:
The Journal of Experimental Biology
影响因子:
--
作者:
R. Wassersug;K. Hoff
通讯作者:
R. Wassersug;K. Hoff
DOI:
--
发表时间:
2005
期刊:
--
影响因子:
--
作者:
通讯作者:
--
影响因子:
0.9
作者:
C. Breder
通讯作者:
C. Breder
影响因子:
2.4
作者:
Zhen Chen;C. Shu;D. Tan;X. Niu;Q. Li
通讯作者:
Zhen Chen;C. Shu;D. Tan;X. Niu;Q. Li