Abstract
Abstract This paper applies a finite difference method in calculating the free surface profiles, the lateral hydrodynamic forces as well as the moments acting on a plate during the oblique towing of a flat plate on the free surface. The 3‐D fluid motion in the infinite region is approximated by the unsteady 2‐D flow in the finite region with an artificial open boundary on which a more relaxed Sommerfeld's radiation condition is imposed. The free surface profiles, nondimensional side forces and yawing moments are calculated by the present method and are compared satisfactorily with the experimental results [15], Chapman's results [4], and Yamasaki's computational results [16].
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