wave growth in kelvin wave test case

General scientific issues regarding ROMS

Moderators: arango, robertson

Post Reply
Message
Author
sankaras
Posts: 33
Joined: Mon Nov 27, 2006 6:02 pm
Location: Stanford University.

wave growth in kelvin wave test case

#1 Post by sankaras » Thu Sep 03, 2009 11:20 pm

Hello,

I tried running the default Kelvin wave test case for 10 days and the results show a growth in free surface amplitudes, starting from the eastern boundary. I am using the default boundary options that came with kelvin.h.

#define RADIATION_2D
#define EAST_FSRADIATION
#define EAST_M2RADIATION
#define EAST_M3RADIATION
#define EAST_TRADIATION
#define WEST_FSCHAPMAN
#define WEST_M2FLATHER
#undef WEST_FSCLAMPED
#undef WEST_M2CLAMPED
#define WEST_M3RADIATION
#define WEST_TRADIATION

The attachments show 10-day time series of surface elevations and velocity at the four corners. Any comments will be highly appreciated.

Thanks,

Sankar

velocity.pdf
(51.86 KiB) Downloaded 82 times
Attachments
freesurface.pdf
(53.99 KiB) Downloaded 74 times

mlicer
Posts: 5
Joined: Tue Jan 26, 2010 4:24 pm
Location: EARS

Re: wave growth in kelvin wave test case

#2 Post by mlicer » Thu Sep 02, 2010 7:57 am

hi, i get the same free surface drift - including a ripple reflected from the upper right corner, see pic below. so i guess this weird behaviour really is in the test case. anyway, i find it comforting to hear it's been noticed by other users as well..
Attachments
kelvin_608.jpg

Post Reply