Visit the official archive and select the "HEC-RAS 5.0.4 Setup Package". You may also choose the version that includes Example Data Sets for testing.
2D computations in this version were optimized to run up to 5 times faster than previous builds. System Requirements download hec ras 5.0 4
Hydrologic Engineering Center (.mil)https://www.hec.usace.army.mil HEC-RAS Downloads - Hydrologic Engineering Center Visit the official archive and select the "HEC-RAS 5
Enables flow hydrographs to be attached directly within 2D areas. choose your installation directory
Improved model accuracy and faster run times.
Allows users to define specific cell sizes within a 2D Flow Area for better detail.
Accept the license terms, choose your installation directory, and decide if you want a desktop shortcut.