Numerical Simulation: River Modelling
Case Study River Rhine Section: Ruhrort - Mehrum - Wesel

This Web page describes the course work of the course "numerical simulation - river modelling". Main tasks are a 1D model and a 2D model of the river Rhine section Ruhort - Wesel, a 2D model for the polder Mehrum and a combined model of the river and the polder for flood modelling purposes. The course work is structured by modellng steps integarted in assignments. Most parts are done as team work.

General Modelling Steps

  1. Data Pre-Analysis

  2. Do a pre-analysis for the given data (geospatial data, hydraulic measurement data)
    Software tool could be GIS, Excel, R, Matlab, paraview or similiar tools.

  3. 1D Model River Section

  4. Set-up a 1D Model for the rhine section between Ruhrort and Wesel.
    Software tool could be Mike11, HecRas or similiar 1D river simulation products.

  5. 2D Model River Section

  6. Set-up a 2D Model for the rhine section between Ruhrort and Wesel.
    Software tool could be Mike21FM, Telemac or similiar 2D river simulation products.

  7. 2D Model Polder Mehrum

  8. Set-up a 2D Model for the polder Mehrum and the related flooding process. Software tool could be Mike21FM, Telemac or similiar 2D river simulation products.

  9. Coupling 1D Model river - 2D Model polder

  10. Combine the 1D model of the river Rhine section and the 2D polder model with for a dam break scenario. Both models can be coupled by a Q/H relationship or simplifed by a Q(t) function (outflow 1D model, inflow 2d model).

  11. 2D Model river and polder

  12. Finally a full 2D model for the river section and the polder could be used to model the flooding of the polder for a dam break scenario (fixed, predfined geometry).

Assignment

The main assignment covers working step 1 + 2. Each student has to do the basic work personally, the case study detailed work is done as team work. Details of the assignment are descripbed on the Assignment Web page. Working step 3 to 5 will be demonstrated and is optional for students, who would like to specialize in these topics.

Literature