1. Francesco Lalli Luca Liberti Subtask 1.6.2 High Resolution Coastal Modelling APAT Italian Agency for Environmental Protection

2. The Continuous Depth-Averaged Model * * * Turbulence Modeling: = 0 + t t = C H u Fischer (1973), Nezu (1996)

3. The Discrete Model Primitive Equations § Finite Difference (Le and Moin, 1991) Þ staggered grid Þ time marching: 3 rd order Runge-Kutta Þ spatial derivatives: explicit 2 nd order centered schemes convective terms: SMART scheme (Gaskell & Lau, 1988) § Complex Geometries: boundary body forces approach (Fadlun et al, 2000)

5. SIMPLE-SHAPED CHANNEL HARBOUR

6. SIMPLE SHAPED CHANNEL HARBOUR: TIME-AVERAGED NUMERICAL SOLUTION

7. Pescara Harbor (Adriatic Sea, Italy) BREAKWATER JETTY MARINA PESCARA RIVER

8. BREAKWATER ENVIRONMENTAL EFFECTS Temperature Field

9. Velocity field (river discharge 30 m 3 /sec)

11. BAROTROPIC JET: PESCARA HARBOUR MODEL (horizontal scale 1:1000, vertical scale 1:100)

13. BAROCLINIC JET: PESCARA HARBOUR MODEL (horizontal scale 1:1000, vertical scale 1:100)

15. Wave-submerged barrier interaction

17. Wave-submerged barrier interaction: rip current generation (wave elevation)

18. Wave-submerged barrier interaction: rip current generation (velocity vectors)

19. Wave-submerged barrier interaction: rip current generation (vorticity)

20. Neretva River Mouth: Bathimetry

21. Neretva river mouth. Grid resolution: 12x12 m

22. Mala Neretva river mouth. Grid resolution: 12x12 m

23. Snapshot of the flow field: velocity vectors. Mala Neretva flow rate=72 m 3 /sec Neretva flow rate=156 m 3 /sec

24. Snapshot of the flow field: vorticity

25. Diffusion of river waters

26. Flow in a simple-shaped channel harbor Numerical Solution Re = UL/ = 100 Numerical Solution Re = UL/ = 300