WIT Press


Real Scale Investigation Of Interaction Between A Supercritical Flow And A Bottom Sill. 1: Physical Aspects And Time-averaged Pressures On Sill

Price

Free (open access)

Paper DOI

10.2495/FSI010281

Volume

56

Pages

10

Published

2001

Size

632 kb

Author(s)

D. Borsani, E. Larcan, S. Mambretti & E. Orsi

Abstract

Results of field scale experiments concerning the interactions between a supercritical flow and a vertical bottom sill are presented. Experiments are performed in a channel (width B = 5.01 m) downstream of the weir of Sernio (Adda River, Northern Italy) using a vertical sill with adjustable height s (0.5 m, 0.6 m and 0.7 m). Significant cinematic and geometric parameters of flow have been measured for different discharge regimes. The fluctuating local pressure on the upstream face of the sill have been recorded by means of sensors, connected to a digital acquisition system. The experimental tests show that, in accordance with previous laboratory experiments of Guadagnini, La

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