| Popis: |
The Kasai River, affluent of Congo River, is one of the main transport axes for the Democratic Republic of the Congo. Many areas are clear of obstacle and are suitable for navigation but some channels like the Kandolo one are more difficult to cross. Due to its length of more than 2°153 km, it is difficult to achieve an accurate bathymetric survey over its entire length and in particular between small islands and in the vegetation zones. It is then proposed to complete the lack of bathymetric data in the Kandolo pass by using optimization and by coupling Telemac with OpenTURNS. This application require first to construct a model using available bathymetric data and create patches zones in the area where bathymetric data is not available, mainly in the small passes between the two mains arms. On each of these areas, a bathymetric mesh gradient coefficient is built and will be used multiply by an optimization parameter to modify the bathymetry for each simulation run. A score is then calculate for each run by comparing the flows rates measured in situ on different profiles to the model results. Between each run, OpenTURNS is used to determine a new optimization parameter per area based on the previous score obtained. |
