Basic Theory of Hydrodynamics

Ship hydrodynamic performance evaluation technique is one of the prerequisites and key conditions for ship-type optimization based on SBD technology, which provides an effective means to establish the mathematical model of ship design optimization problem. The accuracy of the hydrodynamic performance evaluation directly affects the quality of the optimization results [1]. In the optimization process, the optimization algorithm will adjust the next search direction based on the performance prediction results. Therefore, the reliability of the performance prediction results is the key to ensure that the search direction of the optimization algorithm in the design space is correct or not, and is also directly related to the success or failure of the optimization design.