Adaptive grid deformation method for CFD application to hull optimization

Abstract This work introduces a new grid deformation method for an efficient CFD-based optimization of ship hull forms. The uses two-level point transformation technique to manipulate points with small number design points. At the first level, generic B-spline is employed transfer based on movements control sampled inside box, ensuring accuracy and smoothness surface modification. second Radial Basis Function Wendland’s C2 continuity adopted interpolate relatively few It shown be effective in preserving good mesh quality efficiency. applied surfaces models KVLCC2 KCS, investigate effects bulbous bow calm-water resistance fixed Lpp. A regression model proposed length, location buoyancy, wet area, displacement. Numerical results show that present well-suited form better