Abstract
A pressure-based implicit finite-volume technique is used to solve the Navier–Stocks equation, simulating flow around a smart hydrofoil. The Volume of Fraction (VOF) method is applied to track the free surface. This simulation focuses two main goals. Initially, the equation of a free surface wave, generated by the moving submerge hydrofoil, is extracted, and the wavelength and amplitude of the wave are assessed in the different submerge distances (h/c) and angle of flap (AOF). It is found that the trochoid equation predicts the free surface wave very well. Secondly, the simulation of fluid flow around the smart hydrofoil is performed, and its results are compared with the conventional hydrofoil. For both hydrofoils (smart and conventional), the effect of submerge distance and flap angle is evaluated. The results indicate that smart hydrofoils produce higher lift to drag ratio (L/D) than that of the conventional ones. Besides, the wave amplitude of smart hydrofoil is greater than conventional ones.
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