Dynamic analysis of a floating body in the fluid by using the smoothed particle hydrodynamics

Abstract

This paper describes a method for the prediction of behavior of a floating-type structure using an experiment and numerical analysis according to the various marine conditions. The sloshing simulation is considered to verify the behavior of fluid. The fluid is expressed by a set of particles, the motion of fluid is calculated by using SPH (Smoothed particle hydrodynamics). Numerical results are compared with experiments. A wave tank and linear shaker are used in order to express the sloshing environment. Monaghan boundary force is employed to calculate the interacting force between fluid and boundary. Four wave periods are used to consider the various marine conditions in the fluid-structure interacting simulation. The longitudinal motion of a floating body is compared to each other. As a result, the solution of numerical analysis shows the similar tendency compared to the experiment results.