MECANIQUE DES FLUIDES
SCIENCES DE L'ENVIRONNEMENT 		SIMAC
SIMulateur d'Aménagements Côtiers
SIMAC is a simulator for wave propagation from the open sea to the coastal structures (natural or artificial). It is based on the coupling of two algorithms that allow to take into account all the physical phenomena affecting the wave propagation in shallow water and near the coastal structures.
* First, the wave propagation from the open sea to the neighbouring of the area to study (typically an harbour and/or a beach) is simulated. This first computation gives the characteristics of the incident wave at the entrance of the second simulated area. Toga Actuel
Wave field in Port TOGA harbour :
Current situation 		Toga Futur
Wave field in Port TOGA harbour :
Future situation
* A fine calculation is then performed in second domain which takes into account the reflexion on physical boundaries, the diffraction and the refraction.
* The first algorithm may use the classical ray tracing computation (refraction only).
If it is necessary to include diffraction in the simulation, the combined refraction-diffraction problem may be solved by two manners :
* The resolution of the parabolic form of the Berkhoff's equation by using a finite difference approach.
* The setting-up of finite element method and a splitting of the domain by submodels. This last method is more accurate especially for complicated bathymetry.
In the port or near the shore, the Berkhoff's equation is also solved with finite elements. The final result is the wave field at any point of the domain.
Maillage 3D
1 - 		Boite
2 - 		Agitation
3 -
Extension project of the harbour of Mandelieu la Napoule (06)
1 - Sea surface meshing

2 - Tridimensionnal module : Dynamic wave absorber, ACRIPEL.

3 - Wave field in the future harbour

Exemples:
      Golfe Juan harbour
      Project of Hammamet Harbour (Tunisia)