EXPERIMENTAL STUDY ON THE SIDE CHANNEL SPILLWAY AND ITS IMPACT ON THE JUMP, CROSS FLOW AND ENERGY DISSIPATION
DOI:
https://doi.org/10.11113/jt.v81.13811Keywords:
Side channel spillway, chaotic jumps, cross flow, energy dissipationAbstract
The utilization of the side channel spillway as the primary component of dam is generally due to the limitation of the available space to construct conventional spillway with design discharge capacity. Some impacts may only be identified through the hydraulic physical model study; these include the presence of the chaotic jumps at the downstream of the spillway crest, the cross flow on the steep channel, as well as the performance of the energy dissipation in the stilling basin. This paper presents the result of the experimental study of three-dimensional behaviour of flow over the entire components of the side channel spillway of Bener Dam, Indonesia. The main dam and its appurtenant components, i.e., the reservoir, the spillway crest, the spillway channel, and the energy dissipaters were built, and various discharges were introduced to study the hydraulic performance of the spillway crest, the stilling basin, the chute, and the energy dissipater. The observed data were collected and then analysed. The results show that firstly, some chaotic hydraulic jumps were found at the stilling basin at downstream spillway crest. These chaotic hydraulic jumps would produce significant vibration that may endanger the nearby structures. Secondly, the presence of the cross flow along the steep channel downstream of the stilling basin may also need to be eliminated in such that its impact on the rise of water surface level does not create any objection. This may be carried out through the installation of baffles along the spillway channel bed. Thirdly, the presence of the hydraulic jumps at the energy dissipater basin under the design discharge has proven that the energy dissipater has performed well where local scour around the downstream structure was found to be not significant. However, to anticipate the raising of the water surface elevation at the energy dissipater basin, increasing the elevation of energy dissipater wall from +212.50 m to +215.00 m is highly recommended.
References
Lucas, J., Lutz, N., Lais, A., Hager, W. H., and Boes, R. M. 2015. Side-Channel Flow: Physical Model Studies. Journal of Hydraulics Engineering. 141(9): 05015003.
DOI: 10.1061/(ASCE)HY.1943-7900.0001029.
Bilhan, O., Emiroglu, M. E., Miller, C. J. 2016. Experimental Investigation of Discharge Capasity of Labyrinth Weirs with and without Nappe Breakers. World Journal of Mechanics. 6: 207-221. http://www.scirp.org/journal/wjm.
DOI: 10.4236/wjm.2016.67017.
Mansoori, A., Erfanian, S., Moghadam, F. K. 2017. A Study on the Conditions of Energy Dissipation in A Stepped Spillway with A-shaped step Using Flow-3D. Civil Engineering Journal. 3(10): 856-867.
DOI: 10.28991/cej-030920.
Anam, P., Kulkarini, D. R., Chandra, V. 2018. Physical Model Study of Side Channel Spillway. International Journal of Civil Engineering and Technology (IJCET). 9(7): 774-782.
Canadian International Development Agency (CIDA). 1993. Flood Control Manual, Volume III: Guidelines for Design and Implementation. Hydroconsult INC.
United States Department of Interior. 1987. Design of Small Dams. Third Edition. A Water Resources Technical Publication. Bureau of Reclamation.
Dehdar-behbahani, S., Parsaie, A. 2016. Numerical Modeling of Flow Pattern in Dam Spillway’s Guide Wall, Case study: Balaroud dam, Iran. Alexandria Engineering Journal. 55(1): 467-473.
DOI: 10.1016/j.aej.2016.01.006.
Chen, H., Liu, J., Zhao, W. 2016. Effects of Y-type Spillway Lateral Contraction Ratios on Debris-Flow Patterns and Scour Features Downriver of a Check Dam. Natural Hazards Earth System Sciences. 16: 2433-2442.
DOI: 10.5194/nhess-16-2433-2016
Lopes, P., Bung, D. B., Leandro, J., Carvalho, R. F. 2015. The Effect of Cross-Waves in Physical Stepped Spillway Models. E-proceedings of the 36th IAHR World Congress. The Hague, the Netherlands. 28 June – 3 July 2015.
Sadeghfam, S., Akhtari, A.A., Daneshfaraz, R., Tayfur, G., 2014. Experimental Investigation of Screens as Energy Dissipaters in Submerged Hydraulic Jump. Turkish Journal of Engineering & Environmental Sciences. 38: 126-138.
DOI: 10.3906/muh-1401-15.
Chevallet, G., Jellouli, M., Deroo, L. 2012. Democratization of 3D-CFD Hydraulic Models: Several Examples Performed with ANSYS CFX. SimHydro 2012: New Trends in Simulation. Sophia Antipolis. 12-14 September 2012.
Arvandi, S., Khosrojerdi, A., Rostami, M., Baser, H. 2013. Simulation of Interaction of Side Weir Overflows with Bed-Load Transport and Bed Morphology in a Channel (SSIIM2.0). International Journal of Water Resources and Environmental Engineering. 5(5): 255-261.
DOI 10.5897/IJWREE12.124.
Severy, A., Felder, S. 2017. Flow Properties and Shear Stress on a Flat-Sloped Spillway. Proceedings of the 37th IAHR World Congress, August 13 – 18, 2017, Kuala Lumpur, Malaysia.
PT. Indra Karya (Persero). 2008. Review Design of Bener Dam. Final Report, Directorate General of Water Resources, Ministry of Public Works, the Government of Republic of Indonesia.
Hager, W. H., Pfister, M. 2015. Historical Development of Side-channel Spillway in Hydraulic Engineering. 34th IAHR World Congress - Balance and Uncertainty, Brisbane, Australia. 26 June - 1 July 2011.
Widowati, A. P. A. 2017. Hydraulic and Hydrologic Modeling of Steep Channel of Putih River, Magelang District, Central Java Province, Indonesia. Journal of the Civil Engineering Forum. 3(3): 125-134.
DOI: 10.22146/jcef.26507.
Ibrahim, Z., Ismail, Z., Haruna, S., Shiono, K., Zukia, N. M., Makhtara, M. R., Jumaina, M., Rahmana, M. S. A., Jamala, M. H. 2017. Flood Hydraulics due to Emergent Vegetation along a Riparian Zone in Meandering Channels. Jurnal Teknologi (Sciences & Engineering). 78: 9-4 (2016): 99-107.
DOI: 10.11113/jt.v78.9703.
Savage, B. M., Johnson, M. C. 2001. Flow Over Ogee Spillway: Physical and Numerical Model Case Study. Journal of Hydraulic Engineering. 127(8): 640-649.
DOI: 10.1061/(ASCE)0733-9429(2001)127:8(640).
Song, C. S. C., Zhou, F. 1999. Simulation of Free Surface Flow over Spillway. Journal of Hydraulic Engineering. 125(9): 959-967.
DOI: 10.1061/(ASCE)0733-9429(1999)125:9(959).
Guo, J. C. Y. 1999. Critical Flow Section in a Collector Channel. Journal of Hydraulic Engineering. 125(4): 422-425.
DOI: 10.1061/(ASCE)0733-9429(1999)125:4(422).
Tamer Bagatur, T., Baylar, A. 2008. Numerical Computation of Main Water Depths in Ogee-Crested Spillways. e-Journal of New World Sciences Academy 2008. 3(4).
Goodling, P. J., Lekic, V., Prestegaard, K. 2018. Seismic Signature of Turbulence during the 2017 Oroville Dam Spillway Erosion Crisis. Earth Surface Dynamics. 6: 351-367.
DOI: 10.5194/esurf-6-351-2018.
Rad, I.N. 2016. Application of Numerical Methods in Design of Hydraulic Structures. Communications on Advanced Computational Science with Applications 2016. 1(2016): 1-15. DOI: 10.5899/2016/cacsa-00050.
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