Hydrodynamic Performance Analysis of a High-Speed Catamaran Based on CFD

Abstract

This research uses the CFD software STAR-CCM+ to analyze the hydrodynamic performance of a particular aluminum alloy catamaran in order to investigate the accuracy of numerical simulation forecasts utilizing CFD technology. In order to simulate the ship's motion reaction in regular waves and its still water resistance under different operating conditions, a numerical wave pool model is developed based on the Volume of Fluid (VOF) approach. The dependability of numerical calculation techniques is examined by contrasting them with model testing and establishing a correlation with the real maritime conditions of the ship's navigation posture. According to the results, the anticipated motion response in regular waves matches the ship's actual maritime navigation posture, and the CFD simulation of the catamaran's still water resistance falls within the allowable error range when compared to experimental data. As a result, CFD technology's numerical prediction accuracy satisfies engineering applications by accurately replicating the ship's condition during real navigation and offering ease of use and support for the design and optimization of comparable ships.