Current research relates to the sinking of cylinder sitting on the ocean bed. Code using FEM has been developed to solve Navier Stokes equation. Flow field obtained from the CFD code is used to drive the movement of sediment and the cylinder. In this project, bedload and suspended sediment transport are considered. For now, the theory of cylinder sinking is not developed well enough to predict the movement. So only empirical equation is used. Further development includes turbulent flow, and remesh of grid (moving boundary), among others.