Zhonglu Lin1,2, Dongfang Liang2, Yu Zhang1,*
The International Conference on Computational & Experimental Engineering and Sciences, Vol.27, No.3, pp. 1-9, 2023, DOI:10.32604/icces.2023.010442
Abstract Fish schools are capable of simultaneous linear acceleration. To reveal the underlying hydrodynamic
mechanism, we numerically investigate how Reynolds number Re = 1000−2000, Strouhal number St =
0.2−0.7 and wavelength λ = 0.5−2 affects the mean net thrust of two side-by-side NACA0012 hydrofoils
undulating in anti-phase. In total, 550 cases are simulated using immersed boundary method. The thrust is
strengthened by wavelength and Strouhal number, yet only slightly by the Reynolds number. We apply the
symbolic regression algorithm to formulate this relationship as a high-level summary. More >
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