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Published: Građevinar 70 (2018) 9
Paper type: Professional paper
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Physical model study for evaluation of jet impact on sediment flushing

Ahmad Abdipour, Hassan Ahmadi, Seyed Abbas Hosseini

Abstract

Pressure flushing is one of the methods that are used for removing sediments from reservoirs. In this research, submerged jets were used in front of the dam. A physical model was developed to study the influence of jet characteristics (nozzle diameter, jet velocity, and jet discharge) and reservoir output parameters (bottom outlet level and discharge) on the sediment release. The efficiency of the jets was established by comparing the sediment scour obtained under different conditions: once with jets and once without jets. The sediment scouring efficiency ranged between 0.9 and 3.1 for jet experiments, and between 0.1 and 0.3 for reference tests (without jets).

Keywords
pressure flushing, physical model, sediment scouring, jet velocity, nozzle diameter

HOW TO CITE THIS ARTICLE:

Abdipour, A., Ahmadi, H., Hosseini, S. A. .: Physical model study for evaluation of jet impact on sediment flushing, GRAĐEVINAR, 70 (2018) 9, pp. 811-818, doi: https://doi.org/10.14256/JCE.1499.2015

OR:

Abdipour, A., Ahmadi, H., Hosseini, S. A. . (2018). Physical model study for evaluation of jet impact on sediment flushing, GRAĐEVINAR, 70 (9), 811-818, doi: https://doi.org/10.14256/JCE.1499.2015

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This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
Ahmad Abdipour WEB
Ahmad Abdipour
Science and research branch
Islamic Azad University
Faculty of Civil Engineering
Teheran, Iran
dr ahmadi WEB
Hassan Ahmadi
Roudehen branch
Islamic Azad University
Faculty of Civil Engineering
Teheran, Iran
dr hosseini WEB
Seyed Abbas Hosseini
Science and research branch
Islamic Azad University
Department of Civil Engineering
Teheran, Iran