Numerical Investigation on Effect of Surface-piercing Hydrofoils on Speed Performance of Catamaran
With the development of marine engineering,the demand for offshore operations is becoming more and more diversified,and there are higher requirements for the speed of high-performance vessels.This study focuses on evaluating the efficacy of surface-piercing hydrofoils in enhancing the speed performance of an unmanned catamaran,employing Computational Fluid Dynamics(CFD)software STAR-CCM+for hydrodynamic and motion simulation of the catamaran.Following the validation of mesh convergence and comparison with the towing experiment of the catamaran to ensure methodological robustness,the appropriate parameters of hydrofoils are selected.Through comparative analysis of simulation results across varied installation positions of hydrofoils,determination of the vertical position range for hydrofoils to attain lift effect,assessment of the lateral positions of fore and aft hydrofoil on interference and efficiency,and methods for adjusting the ship's navigation attitude through longitudinal position adjustment of hydrofoils have obtained.Synthesizing the factors influencing speed performance,several sets of optimized hydrofoil parameters are identified.In these sets,a maximum speed of 41 kn can be achieved,representing a substantial 46％increase over the original catamaran's performance.
万方数据
维普
