CARBONE Maria Elizabeth
congresos y reuniones científicas
Flujo residual en Puerto Cuatreros, estuario de Bahía Blanca
PIERINI J. O, MARINI, M F, CARBONE M E Y PERILLO GME
Jornada; IV Jornadas Nacionales de Ciencias del Mar; 2000
The two-dimensional data of mean and sediment flow collected at a natural confluence of channels to describe the two-dimensional flow field to assess the role of changes in bed morphology occurring during transport-effective events on the structure of flow at a confluence and to examine how the two-dimensional structure of flow varies with changes in the ratio of momentum flux. At each station, vertical profiles of velocity, salinity, temperature and suspended sediment were obtained. The mean field of flow is characterized by the acceleration of flow in the downstream portion of the post-confluence channel, a stagnation zone at the apex of the junction; a zone of flow deviation and strong fluid close to the margin of the tributary mouth; and reduced velocities over the opposite margin. The position and extent of these zones vary with changes in the ratio of momentum flux over the whole tidal cycle. The effect of the junction produces a distortion of the vertical profile flow and in the suspended sediment transport. Keywords: Bahia Blanca Estuary, residual circulation, salt and sediment fluxes, scour.