River Cases Presentation
This tutorial walks through a complete river/estuarine simulation with Tolosa-sw, using an idealized geometry of the Gironde estuary (France) as the example case.
What You Will Learn
Section titled “What You Will Learn”- Create a 2D unstructured mesh with Gmsh from a simple geometry script
- Configure boundary conditions for a river/tide mixed forcing
- Set up
input.txtandsavefield.yamlfor generic and specific outputs - Post-treat results with PyTolosa and ParaView
Tutorial Steps
Section titled “Tutorial Steps”| Step | Page | Description |
|---|---|---|
| 1 | Domain Definition | Create geometry and mesh with Gmsh |
| 2 | Boundary Conditions | BC types reference |
| 3 | Inputs | Configure input.txt and savefield.yaml |
| 4 | Outputs | Understand the result directory structure |
| 5 | Post-treatment | Visualize results with PyTolosa and ParaView |
Test Case Overview
Section titled “Test Case Overview”The idealized Gironde estuary uses:
- An unstructured Gmsh mesh with spatially variable resolution
- A tidal boundary at the ocean side (15 tidal constituents)
- A discharge boundary at the river head (constant 1000 m³/s)
- Wall boundaries along the banks
- Manning-Strickler friction, Coriolis on beta-plane
- 1-day simulation with tidal forcing