Flapping plates of typical fishlike tail shapes are simulated to investigate their locomotion
performance using the multi-block Lattice Boltzmann Method (LBM) and Immersed
Boundary (IB) method. Numerical results show that fishlike forked configurations have better
locomotion performance compared with unforked plates. Based on our results, the caudal fin
in carangi-form mode has greater thrust, and the lunate tail fin in thunniform mode has
higher efficiency. These findings are qualitatively consistent with biological observations of …