HEC-RAS can compute up to 25000 profiles, for the same geometric data, within a single execution of the steady flow computations. The number of profiles to be computed is defined as part of the steady flow data. When more than one profile is requested, the user must ensure that flow data and boundary conditions are established for each profile. Once a multiple profile computation is made, the user can view output, in a graphical and tabular mode, for any single profile or combination of profiles.
For an unsteady flow analysis, the user can have detailed output computed for the maximum water surface profile, as well as profiles that represent specific instances in time during the unsteady flow simulation. The user can request detailed output for up to 25000 specific time slices.
Warning, as the number of profiles (steady flow) or time slices (unsteady flow) is increased, the size of the output files will also increase.