ADV measurements in a gully with reverse flow

ROMAGNOLI, M.; RITA CARVALHO; JORGE LEANDRO; JOANA PIÃO

Santa Fe

Simposio; III Simpósio sobre Métodos Experimentales en Hidráulica; 2013

Fich UNL

Gullies are vertical inlet structures placed along the surface drainage of streets and highways, through which excess flow is drained into a storm drainage system. Usually, water flows into the gullies. However, pressurized flow might occur in a severe flood event (e.g., when the rainfall exceeds the capacity of the underground pipes) inducing reverse flow. This work aims to experimentally describe flow dynamics characteristics in a typical gully with reverse flow using an acoustic Doppler velocimeter. Experimental tests were carried out in a laboratory facility termed Multiple-Linking- Element at the Laboratorio de Hidraulica, Recursos Hidricos e Ambiente of the Universidade de Coimbra, Portugal.