Lateral Boundary Conditions

[chaos4u2]

Hello, I'm working now with the boundary conditions and I have a few questions.

I know that they can be defined in the *.in file. You can choose, for example, closed, periodic or clamped. My questions are:

1) what of those would be like a dirichlet boundary condition and which one would be Neumann?

2) Is it correct that if I choose Closed or Periodic, I don't have to define a BRYNAME file, and if I choose clamped I need to define it?

3)I've found a script d_obc_mercator.m. Is it good to use this script to define my BRYNAME file?

Thank you very much for your help!

[chaos4u2]

Please, can somebody help me?. I'm sorry it this is too basic questions.

I want to create my own case and I want to understand which are the important inputs. And so the boundary conditions are very important.

I suppose that they can be define in the input file, but I want to know what is really:

-Closed
-Periodic
-Clamped

If I want for example, zeta_west=1.5, and all the other directions 0, would you do:?

LBC(isFsur) = Cla Clo Clo Clo

When do you use the periodic?

[dcherian]

Here, this should help: http://www.oceanwave.jp/research/ROMS/roms_obc.pdf . Looking at your analytical.F90 (Build/ folder) or the various *bc_im.F files in ROMS/Nonlinear/ will show you the code for the various options.

For more detail on the RadNud option, see Marchesiello et al. (2001): http://www.sciencedirect.com/science/ar ... 0300000135

[chaos4u2]

Thank you for your answer!! I'll read those files.