Naslov
Comparison of Numerical and Physical Models for Spillways Transient Flow

Autori
Lončar, Goran ; Andročec, Vladimir ; Gjetvaj, Goran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
33th IAHR Congress ; water engineering for sustainable environment / Jeffrey Bradley - Vancouver : IAHR, 2009, 5904-5911

ISBN
978-90-78046-08-0

Skup
33rd IAHR Congress

Mjesto i datum
Vancouver, Kanada, 09.08.2009. - 14.08.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Spillway; Numerical and Physical Model

Sažetak
The paper gives the list of comparisons of depths and velocities on a spillway section calculated by means of the numerical model and measured on the physical model. The numerical model is based on the methodology of finite volumes, and the physical model was built according to the principle of Froude's similarity in two versions of length scales (18 and 30). Two floor plan configurations of the spillway were analyzed, with constant bottom slope of 25 percent. In the first configuration, lateral vertical walls are parabolic, and in the other wall contour is straight. The analyzed spillway flows were Q = 60, 90, 120 m3/s, which will occur during operation of the hydraulic structure for which the numerical and physical models were made. The comparison of results showed good matching of measured and numerically calculated velocities and levels along the spillway walls and axis, with notable deviation on the ``downstream'' bounary at the point of exit from the spillway chute.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA