Research on resistance of Unmanned Surface Vehicle based on CFD

Unmanned Surface Vehicles (USV) with a high sailing speed, are capable of Intelligence Surveillance & Reconnaissance (ISR), arm protection, mines sweeping, anti-submarine, precision strikes and other functions, widely display the great value of military application. The excellent navigation performance of the usv directly relates to the vitality and battle effectiveness. In the paper, In virtue of CFD technology, CFX software was utilized to directly simulate the 3D flow around USV which heels a certain degree in a high sailing speed. Resistance performance were predicted, and the hydrodynamic distribution of USV, free-surface shape were discussed. In the end, the calculated results generated by the two different methods were analyzed and compared.