Inspired by the Black Ghost Knifefish: Bionic Design of Undulatory Fin with 2-DOF Rays and Its Propulsion Performance

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter</td><td class="align_center">Prevalue</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Solver</td><td class="align_center">Pressure based</td></tr><tr><td class="align_left">Time</td><td class="align_center">Transient</td></tr><tr><td class="align_left">Viscous model</td><td class="align_center">k-epsilon (2 equation)</td></tr><tr><td class="align_left">Materials</td><td class="align_center">Water liquid</td></tr><tr><td class="align_left">Inlet</td><td class="align_center">Velocity inlet (0 m/s)</td></tr><tr><td class="align_left">Outlet</td><td class="align_center">Pressure outlet</td></tr><tr><td class="align_left">Dynamic Mmesh</td><td class="align_center">Smoothing and remeshing</td></tr><tr><td class="align_left">Computational domain</td><td class="align_center">20 × 15 × 15 mm</td></tr><tr><td class="align_left">Number of grid</td><td class="align_center">1,46,885</td></tr><tr><td class="align_left">Number of time steps</td><td class="align_center">200</td></tr><tr><td class="align_left">Time step size</td><td class="align_center">0.01 s</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Applied Bionics and Biomechanics

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Table 4

Table 4: Inspired by the Black Ghost Knifefish: Bionic Design of Undulatory Fin with 2-DOF Rays and Its Propulsion Performance 