Unsteady / transient 2D river flow modeling with HECRAS - Tutorial

This applied example demonstrates the simulation of unsteady flow around a river island, guiding you through the complete numerical modeling workflow. It begins with pre-processing, covering spatial data import, boundary condition definition, and computational mesh generation. Next, the setup details importing hydraulic loading data from DSS files and optimizing the computational time step based on the Courant condition to ensure strict numerical stability and convergence. Finally, the example features a comprehensive post-processing review of the simulation results, analyzing velocity fields, water surface profiles (stages), particle tracking, and immersive 3D visualizations.

Tutorial

Part 1

Part 2

Input data

You can download the input data from this link:

https://owncloud.hatarilabs.com/s/j5e1CHvAhx99jlR
Password: Hatarilabs