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Journal of Engineering
Volume 2016, Article ID 8645789, 7 pages
Research Article

Sediment and Cavitation Erosion Studies through Dam Tunnels

1Interdisciplinary Research Center, COMSATS Institute of Information Technology, Wah Cantonment 47040, Pakistan
2School of Mechanical and Manufacturing Engineering, NUST, Islamabad 44000, Pakistan
3Department of Mathematics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
4Department of Electrical Engineering, Islamic University of Madinah, Madinah 20012, Saudi Arabia

Received 6 November 2015; Accepted 21 February 2016

Academic Editor: Sheng-Rui Jian

Copyright © 2016 Muhammad Abid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents results of sediment and cavitation erosion through Tunnel 2 and Tunnel 3 of Tarbela Dam in Pakistan. Main bend and main branch of Tunnel 2 and outlet 1 and outlet 3 of Tunnel 3 are concluded to be critical for cavitation and sediment erosion. Studies are also performed for increased sediments flow rate, concluding 5 kg/sec as the critical value for sudden increase in erosion rate density. Erosion rate is concluded to be the function of sediment flow rate and head condition. Particulate mass presently observed is reasonably low, hence presently not affecting the velocity and the flow field.