Modélisation du transport des nappes d'hydrocarbures en zone continentale et estuarienne

Abstract : The application of the European Water Framework Directive on water quality for human consumption and industrial activities creates a need for water quality assessment and monitoring systems. The MIGR'HYCAR research project (http://www.migrhycar.com) was initiated to provide decisional tools for risks connected to oil spills in continental waters (rivers, lakes and estuaries), which represent more than 50% of accidental spills in France. Within the framework of this project, a new numerical oil spill model has been developed, as part of the Telemac hydro-informatics system (see: (http://www.opentelemac.org), by combining Lagrangian and Eulerian methods. The Lagrangian model describes the transport of an oil spill near the free surface. The oil spill model enables to simulate the main processes driving oil plumes: advection, diffusion, oil beaching, oil re-floating, evaporation, dissolution, spreading and volatilization. Though generally considered as a minor process, dissolution is important from the point of view of toxicity. To model dissolved oil in water, an Eulerian advection-diffusion model is used. The fraction of dissolved oil is represented by a passive tracer. This approach is able to follow dissolved hydrocarbons in the water column. Laboratory experiments were conducted to characterise the numerous kinetics of the processes listed above. In addition, meso-scale dynamic experiments in artificial channels and test cases derived from the literature are used to validate the numerical model
Document type :
Theses
Complete list of metadatas

Cited literature [139 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/pastel-00778087
Contributor : Abes Star <>
Submitted on : Friday, January 18, 2013 - 4:32:47 PM
Last modification on : Wednesday, January 30, 2019 - 3:16:03 PM
Long-term archiving on : Friday, April 19, 2013 - 4:04:18 AM

File

TH2012PEST1131_complete.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : pastel-00778087, version 1

Collections

Citation

Cédric Goeury. Modélisation du transport des nappes d'hydrocarbures en zone continentale et estuarienne. Sciences de la Terre. Université Paris-Est, 2012. Français. ⟨NNT : 2012PEST1131⟩. ⟨pastel-00778087⟩

Share

Metrics

Record views

1253

Files downloads

10517