TY - GEN
T1 - An experimental study of flow depth and energy losses on stepped spillway of 45 degree of slope
AU - Anwar, Nadjadji
AU - Edijatno,
AU - Dermawan, Very
N1 - Publisher Copyright:
© 34th IAHR Congress 2011. All rights reserved.
PY - 2011
Y1 - 2011
N2 - A physical hydraulic model investigation was conducted to evaluate the performance of a stepped spillway. The spillway has 1V:1H (45o) slope with continues steps cut into the surface of spillway from the crest to the toe. The steps on the stepped spillway could dissipate more energy and its can reduce the size of downstream stilling basins. This paper presents the results of the experimental studies on spillway of 45o and to find out the energy dissipation at conventional spillway and stepped spillway, the energy at the toe of stepped spillway, and the flow depth at the toe of stepped spillway due to the variations of steps number. Hydraulic model of 1V:1H of smooth and stepped spillway implemented at laboratory with 100 cm high, 30 cm wide, 5 variations of flow rates from 1,61 l/s to 4,26 l/s, and 5 variations number of steps: 2, 4, 8, 16, 32 steps. Graph representing the dimensionless relationship among parameters which are useful information for the hydraulic design of 1V:1H stepped spillway.
AB - A physical hydraulic model investigation was conducted to evaluate the performance of a stepped spillway. The spillway has 1V:1H (45o) slope with continues steps cut into the surface of spillway from the crest to the toe. The steps on the stepped spillway could dissipate more energy and its can reduce the size of downstream stilling basins. This paper presents the results of the experimental studies on spillway of 45o and to find out the energy dissipation at conventional spillway and stepped spillway, the energy at the toe of stepped spillway, and the flow depth at the toe of stepped spillway due to the variations of steps number. Hydraulic model of 1V:1H of smooth and stepped spillway implemented at laboratory with 100 cm high, 30 cm wide, 5 variations of flow rates from 1,61 l/s to 4,26 l/s, and 5 variations number of steps: 2, 4, 8, 16, 32 steps. Graph representing the dimensionless relationship among parameters which are useful information for the hydraulic design of 1V:1H stepped spillway.
KW - Energy dissipation
KW - Hydraulic jump
KW - Spillway
KW - Stepped spillway
UR - https://www.scopus.com/pages/publications/85066125174
M3 - Conference contribution
AN - SCOPUS:85066125174
T3 - 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
SP - 2354
EP - 2363
BT - 34th IAHR Congress 2011 - Balance and Uncertainty
PB - International Association for Hydro-Environment Engineering and Research (IAHR)
T2 - 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
Y2 - 26 June 2011 through 1 July 2011
ER -