15.16. Plannar Beach#

This test case is a littoral flow driven by obliquely incident waves on a plane beach with a uniform slope of 1:80. The model is forced by monochromatic waves computed with the WKB wave model [Uchiyama et al., 2010] propagating offshore waves with 2 m significant wave height, a peak period of 10 s at an angle of 10° off the shore-normal direction. The horizontal extent of the domain is 1180 m in x (cross- shore), 140 m in y (alongshore) with grid spacings of dx = dy = 20 m. The model coordinates have a west-coast orientation, with the offshore open boundary located at x = 0. The resting depth h varies linearly from 12 m offshore, and is discretized with 20 uniform vertical sigma levels. Boundary conditions are alongshore periodicity, weetin-drying conditions at shore and open boundary conditions at the offshore boundary. Rotation is excluded with f = 0. There is no lateral momentum diffusion, stratification, nor surface wind/heat/freshwater fluxes. Breaking acceleration is given by the Church and Thornton [1993] formulation in the WKB model and wave-enhanced vertical mixing is computed by the first-order turbulent closure model, K-Profile Parameterization (KPP).

# define SHOREFACE

CPP options:

# undef  OPENMP
# undef  MPI
# define SOLVE3D
# define UV_ADV
# undef  MASKING
# define WET_DRY
# define NEW_S_COORD
# define ANA_GRID
# define ANA_INITIAL
# define ANA_SMFLUX
# define ANA_STFLUX
# define ANA_SSFLUX
# define ANA_SRFLUX
# define ANA_SST
# define ANA_BTFLUX
# define NS_PERIODIC
# define OBC_WEST
# define SPONGE
# define MRL_WCI
# ifdef MRL_WCI
#  undef  WAVE_OFFLINE
#  ifndef WAVE_OFFLINE
#   define WKB_WWAVE
#   define WKB_OBC_WEST
#   define WAVE_FRICTION
#   undef  WAVE_ROLLER
#   undef  MRL_CEW
#  endif
# endif
# define LMD_MIXING
# define LMD_SKPP
# define LMD_BKPP
# undef  BBL
# undef  SEDIMENT
# ifdef SEDIMENT
#  define TCLIMATOLOGY
#  define TNUDGING
#  define ANA_TCLIMA
# endif

Settings :

Results :

../_images/test_cases_shoreface.png — SHOREFACE results : Eulerian velocities (left), Stokes velocities (center), Vertical mixing (right)#