[migmolper]

Hi everyone, mi name is Miguel an student of Civil engineering in Universidad de Sevilla (Spain). I'm doing a numerical simulation of the great Lisbon tsunami using Gerris. My problem is that the tsunami wave does not spread to the american east coast (and should), i have four suspects:
- The dissipative forces are very strong
- Meshing criterion
- The minimum cell size is not small enough
- The way of calculate the advection terms
(The flux limiter that I'm using is sweby gradient)

This is the code that i use for the bottom friction. FRICC = 1e-3
U = P > DRY ? U/(1. + dt*Velocity*FRICC/P) : 0
V = P > DRY ? V/(1. + dt*Velocity*FRICC/P) : 0

Can anyone suggest me something?
If anyone want complete the code, ask me please.

Cheers