IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 3 - WATER ENGINEERING AND CIVILIZATION : Investigation on the Flow Characteristics of the Bottom Aerators on the Chute with a Circular Arc Se...
Investigation on the Flow Characteristics of the Bottom Aerators on the Chute with a Circular Arc Section
Author : Yimin Xu, Wei Wang, Hongxuan Yang, Wei Zhao and Chunying Shen
The chute bottom aerator is often used to protect discharge works against cavitation erosion caused by high velocity flows and it has become more and more popular as it has been proved to be an economical, effective and successful measure by many hydraulic projects. The flow characteristics of an aerator inserted on the chute with a circular arc section is more complex than that of on the chute with a straight segment. The area of the air intake of the aerator, the air pressure in the cavity after the aerator and the backwater in the cavity are very important factors which influence the flow aeration effects for the aeration facilities. How these factors affect flow characteristics is investigated by theoretical analysis and systematic model tests. The results show that the cavity length increases with the increasing of the air intake area at first, and then it remains unchangeable for a discharge even though the air intake area continues to increase. But the air pressure in the cavity decreases with the increasing of the air intake area. Some factors, such as flow discharge, aerator style, the cavity air pressure which influence the backwater in the cavity are investigated.
File Size : 166,885 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 3 - WATER ENGINEERING AND CIVILIZATION
Date Published : 18/07/2016
Download Now