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 : 36th Congress - The Hague (2015) FULL PAPERS : THEME 4- WATER ENGINEERING : EXPERIMENTAL STUDY OF THE DYNAMIC SCOUR PLUNGING POOL UNDER SUBMERGED CIRCULAR JET
EXPERIMENTAL STUDY OF THE DYNAMIC SCOUR PLUNGING POOL UNDER SUBMERGED CIRCULAR JET
Author : IRANDOKHT DEHGHANI , BABAK LASHKAR-ARA , MOHAMAD ZAKERMOSHFEGH , MOHAMAD HOSSEIN GHOTBI
One of the most important issues in the river hydraulics is scour prediction due to impact of dams and flood drainage systems or water jet discharged from the outlet of the cooling systems of nuclear power plants to the river bed. Several factors contribute to the formation of scour holes which include the nozzle diameter, jet velocity, tailwater depth, grain size distribution of bed material and jet height from the river bed or plunge pool. In this paper using the experimental study, static and dynamic dimensions of scour were studied by changing jet height from to the bed material and grain size distribution, in the area under this study, The results show that the relative static scour depth against erosion parameter are defined in this study has the slope of the ten percent. Also used laboratory observations and analysis of the results showed that the relative difference dynamic and static scour depth is directly related to the Froude number. Depending on the jet height from the alluvial bed, Dynamic scour depth is an average 2.6 times than static scour.
File Size : 765,274 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 4- WATER ENGINEERING
Date Published : 19/04/2016
Download Now