Abstract
A finite element method for the multiple level analysis of tidal current flow considering an open boundary condition is presented in this paper. The incident wave condition which does not cause spurious reflective waves on the open boundary has been proposed and it has been applied to the boundary condition in the multiple level tidal current analysis. To determine the reflective wave component, the subdomain located adjacent to the open boundary is introduced. The reflective wave component on the open boundary can be extracted by computing on the subdomain. The numerical results are compared with the analytical solution and the observed data. Both results show well in agreement.
