Evaluating the Effect of Anti-Vortex Plates on Discharge Coefficient in Short Throat Shaft Spillway | ||
| Journal of Hydraulic and Water Engineering | ||
| دوره 1، شماره 2، فروردین 2024، صفحه 83-103 اصل مقاله (1.12 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22044/jhwe.2023.13103.1016 | ||
| نویسنده | ||
| Roozbeh Aghamajidi* | ||
| Department of Civil Engineering, Engineering Faculty, Islamic Azad University, Sepidan Branch, Sepidan, Iran | ||
| چکیده | ||
| Knowing more about the flow behavior of short-stepped shaft spillways helps to use this structure better and more efficiently. Moreover, using a vortex breaker greatly affects passing flow through Shaft Spillway. For use more efficiently, the risk of the flow of water on the crest decreases to less than fluid vapor. The water head on the crest, called cavitation, should be prevented as long as possible. This research has tried to experimentally study different behaviors of stepped chambers and different vortex breaker shapes on spillway flow. From the viewpoint of the effects of flow regime changes on spillways, changes according to the vortex breaker shapes, and the change of type of flow range will be studied effectively. Finally, the best relationship between the water head on the crest and the discharge coefficient was determined. One of the most important issues on the hydraulic coefficient of the spillway is related to the relationship between the water head on the crest and the hydraulic coefficient of this special hydraulic structure. In other words, when flow changes and moves upward till full pipe condition, knowing about the empirical coefficient of the spillway is very useful to predict hydraulic behavior in different situations. | ||
| کلیدواژهها | ||
| Vortex blades؛ Submersible Ratio؛ Shaft Spillway؛ Coefficient | ||
| مراجع | ||
|
Aghamajidi, R., Jahromi, H.M., Seghi, H., Kashkoi, H., 2013. Study effect of guide pier and stepped chamber on flow regime of morning glory spill way. International Journal of Agriculture and Crop Sciences (IJACS), 6(9): 493-500.
Alfatlawi, T.J., Alshaikhli, H., 2015. Prediction the coefficient of discharge for stepped morning glory spillway using ANN and MNLR approaches. International Journal of Civil and Environmental Engineering, 37(2): 1701-8285.
Asadsangabi, F., Talebbeydokhti, N., Rahnavard, M., 2014. Two phase flow modeling in shaft-spillways using volume of fluid (VOF) method. Iranian Journal of Science and Technology. Transactions of Civil Engineering, 38(C1): 99. This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=4329747 Preprint not peer reviewed 23 712.
Betts, P., 1979. A variational principle in terms of stream function for free-surface flows and its application to the finite element method. Computers & Fluids, 7(2): 145-153.
Bordbar, A., Mousavi Jahromi, H., ShafaeiBajestan, M., Sedghi, H., 2010. Step effects investigation on the flow regime and cavitation in stepped morning glory spillways. World Applied Sciences Journal, 10(9): 1024-1031.
Cassidy, J.J., 1965. Irrotational flow over spillways of finite height. Journal of the Engineering Mechanics Division, 91(6): 155-173.
Chitsazan, M., Ghafouri, H.R., 2022. Optimization of Anti-vortex Blades Geometry in Morning Glory Spillways by Numerical simulation. Environmental Science, 655: https://doi.org/10.21203/rs.3.rs-1685709/v1.
Christodoulou, G., Mavrommatis, A., Papathanassiadis, T., 2010. Experimental study on the effect of piers and boundary proximity on the discharge capacity of a morning glory spillway, International 1st IAHR European Congress, Scotland, Edinburgh, pp. 1-6.
Dong, X.-L., Yang, K.-L., Guo, X.-L., Guo, Y.-X., 2011. Hydraulic mechanism and application of swirling device in morning glory shaft spillway. Shuili Xuebao(Journal of Hydraulic Engineering), 42(1): 14-18.
Esmaeilizadeh, S., Mirzavand, T., 2022. Effect of Deflector and Aeration On the Discharge Coefficient of Submerged Flow of Morning Glory Spillways. Journal of Dam and Hydroelectric Powerplant, 8(31): 61-73.
Falvey, H.T., 1990. Cavitation in chutes and spillways. US Department of the Interior, Bureau of Reclamation Denver, CO, USA.
Fattor, C.A., Bacchiega, J.D., 2009. Design conditions for morning-glory spillways: application to potrerillos dam spillway, In Advances in Water Resources and Hydraulic Engineering. Springer, Berlin, Heidelberg.
Fiedler, W.R., 2010. Performance of spillway structures using Hoover dam spillways as a 692 benchmark, In Hoover Dam: 75th Anniversary History Symposium Fluent User Manual. Sheffield, UK.
Hager, W.H., 1990. Vortex drop inlet for supercritical approaching flow. Journal of Hydraulic Engineering, 116(8): 1048-1054. This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=4329747 Preprint not peer reviewed 21 638.
Haghbin, M. et al., 2022. Determination of discharge coefficient of stepped morning glory spillway using a hybrid data-driven method. Flow Measurement and Instrumentation, 85: 102161.
Ikegawa, M., Washizu, K., 1973. Finite element method applied to analysis of flow over a spillway crest. International Journal for Numerical Methods in Engineering, 6(2): 179-189.
Jafari, J., Aghamajidi, R., 2022. optimizing geometric dimensions and vortex breaker of morning glory spillway using genetic algorithm: Case study of physical model of San Louis Forebay Dam in California, USA. International Journal of Health Sciences(III): 3926-3942. https://doi.org/10.53730/ijhs.v6nS3.6657I.
Jain, S.C., 1984. Tangential vortex-inlet. Journal of hydraulic engineering, 110(12): 1693-1699.
Jain, S.C., 1987. Free-surface swirling flows in vertical dropshaft. Journal of Hydraulic Engineering, 113(10): 1277-1289.
Kasra, A., Khosrojerdi, A., Babazadeh, H., 2022. Cavitation Risk through the Bottom Outlet of the Dam Using Numerical Solution of Ansys Model. JWSS-Isfahan University of Technology, 26(1): 195-209.
Kermani, E.F., Barani, G., Ghaeini-Hessaroeyeh, M., 2013. Investigation of cavitation damage levels on spillways. World Applied Sciences Journal, 21(1): 73-78.
Liu, J., Nissim, D., Thomas, J., 2002. Equity valuation using multiples. Journal of Accounting 698 Research, 40(1): 135-172.
Liu, Z.-P. et al., 2018. Experimental and numerical investigation of flow in a newly developed vortex drop shaft spillway. Journal of Hydraulic Engineering, 144(5): 04018014.
Maynord, S.T., 1985. General Spillway Investigation; Hydraulic Model Investigation (No. 663 WES/TR/HL-85-1).
Nohani, E., 2015. Numerical simulation of the flow pattern on morning glory spillways. International Journal of Life Sciences, 9(4): 28-31.
Olsen, N.R., Kjellesvig, H.M., 1998. Three-dimensional numerical flow modelling for estimation of spillway capacity. Journal of Hydraulic Research, 36(5): 775-784.
Parsaie, A., Dehdar-Behbahani, S., Haghiabi, A.H., 2016. Numerical modeling of cavitation on spillway’s flip bucket. Frontiers of Structural and Civil Engineering, 10: 438-444.
Quick, M.C., 1990. Analysis of spiral vortex and vertical slot vortex drop shafts. Journal of Hydraulic Engineering, 116(3): 309-325.
Radmanesh, S., Bazaee, A., Aghamajidi, R., 2022. Calculating the Overflow Coefficient of Stepped and Non-Stepped Morning Glory Spillway and Investigating its Behavior Using antiVortex blades. Civil and Project, 4(2): 51-64.
Rajaratnam, N., Mainali, A., Hsung, C., 1997. Observations on flow in vertical dropshafts in urban drainage systems. Journal of Environmental Engineering, 123(5): 486-491.
Reclamation, U.S.B.o., 1987. Design of small dams. Water Resources Technical Publication Series.
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.
Savic, L., Kapor, R., Kuzmanovic, V., Milovanovic, B., 2014. Shaft spillway with deflector downstream of vertical bend, Proceedings of the Institution of Civil Engineers-Water Management. Thomas Telford Ltd, pp. 269-278. This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=4329747 Preprint not peer reviewed 22 676
Shemshi, R., Kabiri-Samani, A., 2017. Swirling flow at vertical shaft spillways with circular piano-key inlets. Journal of Hydraulic Research, 55(2): 248-258.
Vischer, D.L., Hager, W.H., 1995. Energy dissipators, hydraulic structures design 631 manual. IAHR, Balkema, Rotterdam, the Netherlands.
Wu, P., Wang, X., Lin, W., Bai, L., 2022. Acoustic characterization of cavitation intensity: A review. Ultrasonics Sonochemistry, 82: 105878.
Zhao, C.-H., Zhu, D.Z., Sun, S.-K., Liu, Z.-P., 2006. Experimental study of flow in a vortex drop shaft. Journal of Hydraulic Engineering, 132(1): 61-68. | ||
|
آمار تعداد مشاهده مقاله: 231 تعداد دریافت فایل اصل مقاله: 213 |
||