tidal currents

[victor quilfen]

Hi all,

I study the morphodynamics of macrotidal beaches throughout the code
XBeach. I performed several simulations on a simple slope beach (slope
of 1.8%) over two tidal periods (with a slope of 10^-5 to generate
tidal currents).

During the flood, tidal currents are well parallel to the coast
(facing up) but during the ebb, they are moving towards offshore
boundary (not down) and are strangely accelerated..
When the tide comes back, they are recovering well parallel to the
coast.

I wanted to know if this could be due to a problem of choice in
boundary options or tide options ('tideloc' and 'paulrevere'). I left
'front=1' and 'back=2' by default for flow boundary conditions.

Any help is welcome!

Sincerely,

Victor

[Robert McCall]

Hi Victor,

What values are you using for the other tide/boundary parameters (i.e.
tideloc, tidetype, paulrevere, left, right)?

Robert

[victor quilfen]

Hi Robert,

I'm using the following values :

tideloc = 2
paulrevere = 1 (so two different signals, one for each offshore
corner)
left = 0
right = 0 (so Neumann boundary conditions)

I have not specified a value for tidetype.

Best,

Victor