Abstract
A computational method has been developed to predict the transportation of large-scale solid bodies due to 3D free-surface flows. The multiphase field including solid bodies and liquid and gas phases separated by free surfaces is assumed to be consist of the incompressible and immiscible fluids with different physical properties. The discretization of pressure equations was examined to obtain the numerically stable converged results. It was shown that the numerical method enables us to predict Rayleigh-Taylor stability problem and drag coefficient of a sphere in a uniform flow as well as the results of hydraulic experiments related to the transportation of multiple spheres by the flow accompanied by wave motions.
