Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Investigation of the Hydraulic Performance of a Hydraulic-Jump-Stepped Spillway
https://orcid.org/https://orcid.org/0000-0002-5082-4345
For a traditional stepped spillway, low energy dissipation and cavitation damage may occur when the unit discharge is larger than a limit due to reduced air entrainment in the flow. In the present work, a new type of stepped spillway called hydraulic-jump-stepped spillway (HJSS) was developed, and the air was efficiently entrained into the flow by means of a hydraulic jump in the aeration basin, which was an aeration element of this stepped spillway. Compared with the traditional stepped spillway, various aspects of the hydraulic performance of the HJSS were experimentally investigated, including the flow pattern, energy dissipation, air entrainment characteristics and time-averaged pressure. Physical model results demonstrated that the HJSS achieved a higher energy dissipation, a more favorable air entrainment performance, and a more reasonable pressure distribution. The HJSS successfully increased the unit discharge from 50–60m2/s for a traditional stepped spillway to 101.47 m2/s.
Experimental Investigation of the Hydraulic Performance of a Hydraulic-Jump-Stepped Spillway
https://orcid.org/https://orcid.org/0000-0002-5082-4345
For a traditional stepped spillway, low energy dissipation and cavitation damage may occur when the unit discharge is larger than a limit due to reduced air entrainment in the flow. In the present work, a new type of stepped spillway called hydraulic-jump-stepped spillway (HJSS) was developed, and the air was efficiently entrained into the flow by means of a hydraulic jump in the aeration basin, which was an aeration element of this stepped spillway. Compared with the traditional stepped spillway, various aspects of the hydraulic performance of the HJSS were experimentally investigated, including the flow pattern, energy dissipation, air entrainment characteristics and time-averaged pressure. Physical model results demonstrated that the HJSS achieved a higher energy dissipation, a more favorable air entrainment performance, and a more reasonable pressure distribution. The HJSS successfully increased the unit discharge from 50–60m2/s for a traditional stepped spillway to 101.47 m2/s.
Experimental Investigation of the Hydraulic Performance of a Hydraulic-Jump-Stepped Spillway
https://orcid.org/https://orcid.org/0000-0002-5082-4345
For a traditional stepped spillway, low energy dissipation and cavitation damage may occur when the unit discharge is larger than a limit due to reduced air entrainment in the flow. In the present work, a new type of stepped spillway called hydraulic-jump-stepped spillway (HJSS) was developed, and the air was efficiently entrained into the flow by means of a hydraulic jump in the aeration basin, which was an aeration element of this stepped spillway. Compared with the traditional stepped spillway, various aspects of the hydraulic performance of the HJSS were experimentally investigated, including the flow pattern, energy dissipation, air entrainment characteristics and time-averaged pressure. Physical model results demonstrated that the HJSS achieved a higher energy dissipation, a more favorable air entrainment performance, and a more reasonable pressure distribution. The HJSS successfully increased the unit discharge from 50–60m2/s for a traditional stepped spillway to 101.47 m2/s.
Experimental Investigation of the Hydraulic Performance of a Hydraulic-Jump-Stepped Spillway
KSCE J Civ Eng
Zhou, Yu (Autor:in) / Wu, Jianhua (Autor:in) / Ma, Fei (Autor:in) / Qian, Shangtuo (Autor:in)
KSCE Journal of Civil Engineering ; 25 ; 3758-3765
01.10.2021
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Hydraulic Experimental Research of Stepped Spillway
| British Library Conference Proceedings | 2013
Hydraulic characteristics of stepped spillway
| British Library Conference Proceedings | 1996
SPILLWAY RESEARCH - Hydraulic performance of stepped chute spillways
| Online Contents | 1998
Study on Hydraulic Characteristics of Stepped Spillway
| British Library Conference Proceedings | 2001
Hydraulic design of Nakasujigawa dam stepped spillway
| British Library Conference Proceedings | 2000