Once all of the geometry and unsteady flow data have been entered, the user can begin performing the unsteady flow calculations. To run the simulation, go to the HEC-RAS main window and select Unsteady Flow Analysis from the Run menu. The Unsteady Flow Analysis window will appear as in Figure 7-14 (except yours may not have a Plan title and short ID).

Figure 7 14. Unsteady Flow Analysis Window