Data

If specified values (Dirichlet boundary condition)  is selected the component concentration at the boundary (in component unit) can be specified in one of three ways

·         Constant (in time and along boundary)

·         Varying in time and constant along boundary

·         Varying in time and along boundary

For the case with boundary data varying in time but constant along the boundary you have to prepare a data file containing the component concen­tration (in component unit) before you set up the hydrodynamic simulation. The data file must be a time series file (dfs0). The data must cover the com­plete simulation period. The time step of the input data file does not, however, have to be the same as the time step of the hydrodynamic simulation. You can choose between different types of time interpolation.

For the case with boundary data varying both in time and along the boundary you have to prepare a data file containing the component concentration (in component unit) before you set up the hydrodynamic simulation. In case of 2D simulation the data file must be a profile file (dfs1). In case of 3D sim­ulation the data file must be a dfs2 file or a 2D dfsu file containing infor­mation from a vertical plane. The data must cover the complete simulation period. The time step of the input data file does not, however, have to be the same as the time step of the hydrodynamic simulation. You can choose between different types of time interpolation.

Interpolation type