Estudio hidráulico en modelo de escalas de peixes de fenda vertical de fenda profunda aliñadasaproximación á avaliación experimental da enerxía cinética turbulenta
- Pena Mosquera, Luis
- Jerónimo Puertas Director
Defence university: Universidade da Coruña
Fecha de defensa: 24 April 2004
- Diego García de Jalón de la Lastra Chair
- Enrique Peña Secretary
- Antoni Palau Ibars Committee member
- José María Carlos Álvarez López Committee member
- Teresa Teijeiro Rodríguez Committee member
Type: Thesis
Abstract
The performance of different kinds of vertical slot fishways for two different slopes was studied in a wide range of discharges. Water depths were measured in almost the whole surface of pools. A linear relation between dimensionless discharge and depth of flow, and the same flow patterns for each design were found. With an acoustic Doppler velocimeter (ADV), three-dimensional velocities were measured at several levels in the entire pool to detect the structure of the flow and quantify velocity distribution. Two different regions in flow patterns were found: a direct flow region characterized by maximum velocities; and a recirculation region, defined by low velocities and horizontal eddies. For a given slope, the velocity at any point of the pool (particularly at the slot) may be considered independent of the discharge and constant with the depth. Some suggestions on kinetic turbulent energy are also made