Suspended Sediment Mixing in the Surf Zone

J JIMENEZ; F RIVERO; SANCHEZ ARCILLA A; GRACIA V; A RODRIGUEZ

Orlando

Conferencia; Int. Conf. Coastal Engineering; 1996

ASCE

The vertical distribution of suspended sediment in the surf zone is analysed byusing field measurements. The analysis focuses in the description of the shape ofthe profile, i.e. mixing coefficient, and to do this, several approaches have beenfollowed: pure diffusion, pure convection and combined diffusion-convection. Theobtained results show a strong dependence of the sediment diffusion coefficientwith the sediment grain size whereas the convective length scale presented asmaller grain-size influence.