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Journal articles on the topic 'Ogee spillway'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

V., S. Chavhan, and A. Hinge G. "Controlled Ski-jump Spillway Model Design According to IS code." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 3107–10. https://doi.org/10.35940/ijeat.C6109.029320.

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Ogee spillways are used to monitor reservoir releases. Ogee spillway is a weir with an ogee (S-shaped) overflow profile. A curve solid surface provided at the toe of the spillway is known as a ski-jump bucket. Ski-jump bucket type energy dissipator is considered more suitable when tail water depth is much lower than the sequent depth of a hydraulic jump. In the ski-jump bucket, the flow coming down the spillway is thrown away in air from the toe to a considerable distance as a free discharging upturned jet (trajectory), which falls on the channel bed downstream. In the ski-jump bucket, only pa

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2

Roushangar, Kiyoumars, Ali Foroudi, and Mojtaba Saneie. "Influential parameters on submerged discharge capacity of converging ogee spillways based on experimental study and machine learning-based modeling." Journal of Hydroinformatics 21, no. 3 (2019): 474–92. http://dx.doi.org/10.2166/hydro.2019.120.

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Abstract Ogee spillways with converging training walls are applied to lower the hazard of accidental flooding in locations with limited construction operations due to their unique structure. Hence, this type of structure is proposed as an emergency spillway. The present study aimed at experimental and machine learning-based modeling of the submerged discharge capacity of the converging ogee spillway. Two experimental models of Germi-Chay dam spillway were utilized: one model having a curve axis which was made in 1:50 scale and the other with a straight axis in 1:75 scale. Using visual observat

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3

Kapure, P. V., S. P. Nangare, T. R. Gaikwad, M. S. Narke, and P. A. Huge. "A Hybrid Approach to Improve Energy Dissipation in Stilling Basin." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (2022): 609–11. http://dx.doi.org/10.22214/ijraset.2022.41270.

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Abstract: This study contains a hydraulic prototype model and experiments that will be conducted to generalize and prove the hydraulic design of a new type of stilling basin that controls discharge with a hollow-jet valve. The stilling basin is usually considered to be the most efficient hydraulic structure for dissipating flow energy. The size and shape of the stilling basin affect the formation of flow patterns, which can affect the overall hydraulic performance of the system. An ogee spillway's is important for dissipating excess water's specific energy. The kinetic energy generated by the

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4

Castro-Orgaz, Oscar, Willi H. Hager, Yakun Guo, Sebastien Erpicum, and Francisco Nicolás Cantero-Chinchilla. "Irrotational Flow over Ogee Spillway Crest: New Solution Method and Flow Geometry Analysis." Water 16, no. 19 (2024): 2720. http://dx.doi.org/10.3390/w16192720.

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A spillway is a hydraulic structure of major importance in dam safety, and its current analysis usually involves a hybrid approach combining CFD modeling with experimental research, either using well-known WES design charts or conducting new model experiments in the laboratory. Flow over spillway crests involves fluid accelerations, making irrotationality an adequate simplification of the Navier–Stokes (NS) equations. However, an efficient tool using this method is currently lacking for spillway flow, particularly for ogee spillway flow. This work focuses on this aspect of the problem, and a n

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5

Kain, San Arnolus, Ali Warsito, Minsyahril Bukit, and Albert Zicko Johannes. "ANALISIS SIFAT MEKANIK MODIFIKASI KEMIRINGAN MERCU SPILLWAY TIPE OGEE DENGAN STUDI KASUS BENDUNGAN RAKNAMO MENGGUNAKAN METODE ELEMEN HINGGA SOFTWARE ELMER." Jurnal Fisika : Fisika Sains dan Aplikasinya 7, no. 1 (2022): 69–74. http://dx.doi.org/10.35508/fisa.v7i1.3964.

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Abstrak Penelitian tentang analisis sifat mekanik modifikasi kemiringan mercu Spillway Tipe Ogee menggunakan metode elemen hingga software ELMER telah dilakukan. Tujuan penelitian ini adalah menganalisis besar tegangan, regangan dan deformasi pada mercu spillway bendungan tipe ogee dengan metode elemen hingga. Struktur bendungan dimodelkan dengan bantuan software FreeCAD, kemudian perhitungan metode elemen hingga dengan software Elmer dan dilanjutkan analisis dengan software ParaView. Berdasarkan hasil analisis mercu Spillway tipe Ogee dengan modifikasi kemiringan 41.18o, 45o dan 48.36o

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6

Jonathan, Ariberto, Doddi Yudianto, and S. Sanjaya. "PENENTUAN POLA OPERASI PINTU PELIMPAH DALAM RANGKA PENGENDALIAN BANJIR BENDUNGAN DELINGAN, JAWA TENGAH." JURNAL TEKNIK HIDRAULIK 12, no. 2 (2021): 93–106. http://dx.doi.org/10.32679/jth.v12i2.662.

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A spillway is one of many important components of a dam, which is operated to prevent the dam from overtopping. Spillway with gate structures requires to have a good operation pattern by considering a minimum critical height and outflow discharge to prevent any flooding events in the downstream part of the spillway channel. The case study in this research is the Delingan Dam which has two ogee spillways, four main sluice gates and four additional sluice gates. Located in Karanganyar District, West Java, Delingan Dam is considered as a vast infrastructure which is potentially threatening if the

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7

Kote, A. S., and P. B. Nangare. "Hydraulic Model Investigation on Stepped Spillway's Plain and Slotted Roller Bucket." Engineering, Technology & Applied Science Research 9, no. 4 (2019): 4419–22. http://dx.doi.org/10.48084/etasr.2837.

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In ogee spillway, the released flood water from crest to toe possesses a high amount of kinetic energy causing scour and erosion on the spillway structure. The dam projects normally have a stilling basin as an energy dissipater which has specific energy dissipation limitations. The stepped spillway is a better option to minimize kinetic energy along the chute and safely discharge water in the river domain. The Khadakwasla dam is situated in Pune, Maharashtra (India), and has scouring and erosion issues on the chute of ogee spillway and on the stilling basin. The present study develops a physic

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8

Kote, Alka Sunil, and Prakash Baburao Nangare. "Hydraulic Model Investigation on Stepped Spillway's Plain and Slotted Roller Bucket." Engineering, Technology & Applied Science Research 9, no. 4 (2019): 4419–22. https://doi.org/10.5281/zenodo.3370610.

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In ogee spillway, the released flood water from crest to toe possesses a high amount of kinetic energy causing scour and erosion on the spillway structure. The dam projects normally have a stilling basin as an energy dissipater which has specific energy dissipation limitations. The stepped spillway is a better option to minimize kinetic energy along the chute and safely discharge water in the river domain. The Khadakwasla dam is situated in Pune, Maharashtra (India), and has scouring and erosion issues on the chute of ogee spillway and on the stilling basin. The present study develops a physic

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9

Daneshfaraz, Rasoul, and Amir Ghaderi. "Numerical Investigation of Inverse Curvature Ogee Spillway." Civil Engineering Journal 3, no. 11 (2017): 1146. http://dx.doi.org/10.28991/cej-030944.

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Design of water structures and their segments including spillways play an important role in water resources management and agricultural activities. In the the linear body part of an ogee spillway, for speeding up the flow rate, the flow should be transferred to the stilling basin by inverse curve so that the water energy can be reduced. This study aims to evaluate the effect of the inverse profile curvature on the pressure of spillway surface using Fluent software. For this purpose, five different curvatures of inverse profile were considered to be equal to no-curvature (zero), 1, 1.5, 2 and 2

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Daneshfaraz, Rasoul, Amir Ghaderi, Aliakbar Akhtari, and Silvia Di Francesco. "On the Effect of Block Roughness in Ogee Spillways with Flip Buckets." Fluids 5, no. 4 (2020): 182. http://dx.doi.org/10.3390/fluids5040182.

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In this study, the effect of the presence of bed-block roughness in an ogee spillway on energy dissipation and jet length is investigated. A series of experimental and numerical tests were conducted using an ogee spillway with block roughness on the bed without a flip bucket and with a flip bucket at different take-off angles (32 °C and 52 °C). To model the free-flow surface, the volume-of-fluid (VOF) method and turbulence model from RNG k–ε were used. Results indicated that the numerical model is fairly capable of simulating a free-flow surface over an ogee spillway; using block roughness on

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11

Aditya, Robby Firza, Endro Prasetyo Wahono, and Subuh Tugiono. "Analisis Perbandingan Pola Aliran Pada Bangunan Pelimpah Ogee Dan Stepped Dengan Model Fisik 2D." Jurnal Rekayasa Sipil dan Desain 9, no. 1 (2021): 41–50. https://doi.org/10.23960/jrsdd.v9i1.1737.

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A spillway building is usually a structure followed by a steep channel. Flow velocity is very dependent on the slope of the bottom channel which causes super critical flow. Besides being fast, the flow in a steep channel also has a considerable energy, so it must be able to be suppressed. The energy reduction in this study was attempted with a stepped spillway. Step weir is a modification of the standard profile for Ogee type weir. This is the background of the author in taking the title of the thesis about Comparative Analysis of Flow Patterns in Ogee and Stepped Overflow Buildings with 2-D P

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12

Haktanir, Tefaruk, and Erol Bor. "An Experimental Study for Radial-Gated Ogee Spillway Discharge and Comparison with Other Model Studies." WSEAS TRANSACTIONS ON FLUID MECHANICS 19 (December 2, 2024): 314–21. https://doi.org/10.37394/232013.2024.19.29.

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The book "Design of Small Dams" is a renowned reference publication used for the design of dams in America and it is commonly used in Turkey as well. Flood spillways of many dams are ogee profile radial-gated weirs, and accurate calculation of discharges passing over a partially open radial-gated ogee spillway is important in flood routing computations. Because each spillway and its appurtenant structures have geometrical and hydraulic properties peculiar to their own, a generalizable method for calculating the discharge over a partially open radial-gated spillway should not be realistic. Ther

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13

Mozaffari, Sevda, Erfan Amini, Hossein Mehdipour, and Mehdi Neshat. "Flow Discharge Prediction Study Using a CFD-Based Numerical Model and Gene Expression Programming." Water 14, no. 4 (2022): 650. http://dx.doi.org/10.3390/w14040650.

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The significance of spillways is to allow the flood to be safely discharged from downstream. There is a strong correlation between the poor design of spillways and the failures of dams. In order to address this concern, the present study investigates the flow over the Nazloo-ogee spillway using the CFD 3D numerical model and an artificial intelligence method called Gene Expression Programming (GEP). In a physical model, discharge and flow depths were calculated for 21 different total heads. Among different turbulence models, the RNG turbulence model achieved the maximum compatibility in comput

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14

Muhanad Mohammed Abbas. "Experimental Investigation of Pressure Distribution Along Makhool Dam Spillway." Diyala Journal of Engineering Sciences 6, no. 2 (2013): 122–38. http://dx.doi.org/10.24237/djes.2013.06209.

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This research is an experimental investigation on the pressure distribution along the surface of Makhool Dam spillway. The work is carried out as series of tests; these series are on the model as it is designed. (17) Piezometers are fixed along the spillway surface and (4)discharges are performed on the model. The results indicated that the pressure distribution is reduced with the increase of the discharge and it is increasing with the decrease of the discharge, and there are two regions of negative pressure; the first at the ogee curve and the second at the end of the sloping straight line a

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15

I. Othman, Khalil. "Scour Downstream an Ogee Spillway." AL-Rafdain Engineering Journal (AREJ) 16, no. 3 (2008): 143–55. http://dx.doi.org/10.33899/rengj.2008.44680.

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16

Siva Parvathi, I., and Atiya Neelofer. "CFD analysis of flow over ogee spillway with varying upstream face slope." Journal of Physics: Conference Series 2779, no. 1 (2024): 012024. http://dx.doi.org/10.1088/1742-6596/2779/1/012024.

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Abstract Spillway design plays a vital role in the management of water resources. Because of its high hydraulic performance and ability to transmit flows safely and efficiently when designed, the Ogee spillway has been a major research project. The spillway must carry more flow than intended if the predicted maximum flood has risen. The present study examines a spillway model with different slopes on the upstream face through commonly used spillway designs from the Waterways Experimental Station (WES). The investigation is performed with computational fluid dynamics (CFD) modeling employing AN

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17

Yildiz, Ali, Alspan Yarar, Ali Ihsan Marti, and Ozmur Kocaer. "A new approach to determine the discharge passing over ogee spillway." SIMI 2019, Abstract Book, SIMI 2019 (September 20, 2019): 17–23. http://dx.doi.org/10.21698/simi.2019.fp01.

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The main purpose of this study is investigation of flow over an ogee spillway experimentally and comparison with the analytical results. An experimental study was conducted to obtain discharges and heads over an ogee spillway. 30 different discharge and flow depths of flow in physical model were measured. Nondimensional discharge and flow depth curves are used to compare the results. Experimental results indicate that some regulations can be done in analytical formulas. In this way the analytical results can be get more accurately.

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18

Herison, Ahmad, Mohd Isneini, Yuda Romdania, Andi Kusnad, Laksmi Irianti, and M. Khoirul Fikri. "STRESS DISTRIBUTION ANALYSIS ON THE SPILLWAY STRUCTURE." Malaysian Journal of Civil Engineering 37, no. 1 (2025): 1–10. https://doi.org/10.11113/mjce.v37.23149.

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The stress distribution varies between different areas. This is caused by several main factors such as spillway height and the magnitude of the forces. The research objective is to analyze stress distribution on the spillway structure due to the acting forces and to generate graphs that can be used as a quick way to obtain its structural stress values. The method employs 12 models of ogee-crested spillways with varying heights. The loads acting include hydrostatic pressure, mud, uplift, and self-weight. Stress distribution is calculated using SAP2000 software. The stress results are illustrate

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19

Xiao, Xin Qian, Liu Lu, and Zhu Xiaohu. "Comparison of Energy Dissipation in Ogee and Stepped Spillway Using the Fluent Software." International Journal of Current Science Research and Review 06, no. 11 (2023): 7345–50. https://doi.org/10.47191/ijcsrr/V6-i11-40.

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Abstract :One of the essential components of any dam is the spillway, which stands as one of the oldest man-made hydraulic structures. It serves as a device designed for the measurement and regulation of water flow, facilitating the controlled passage of excess water and sediment from the upstream to the downstream. This structure finds extensive application in dam construction. Given the critical nature of its function, a stepped spillway demands robust and reliable instruments to ensure high efficiency, ready for use at any moment. Providing crucial information about the behaviour of this si

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20

Saputra, Eko Adi, Endro Prasetyo Wahono, and Ahmad Zakaria. "Analisis Perbandingan Kedalaman Gerusan Lokal (Local Souring) Di Hilir Bangunan Pelimpah (Ogee and Stepped Spillway) Dengan Model Fisik 2D." Jurnal Rekayasa Sipil dan Desain 9, no. 3 (2021): 523–32. https://doi.org/10.23960/jrsdd.v9i3.1914.

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AbstrakSpillway atau disebut dengan bangunan pelimpah merupakan bangunan air yang memiliki fungsi untuk mengalirkan debit banjir yang masuk ke dalam waduk. Dalam perencanaan suatu bangunan air diperlukan penelitian terdahulu mengenai masalah penggerusan lokal (Local Scouring) yang terjadi akibat adanya kecepatan air dan turbulensi yang melampaui daya tahan dari dasar saluran pada bagian hilir bangunan. Dari analisis hidrolika penelitian ini menggunakan desain bangunan pelimpah Ogee and Stepped dengan model fisik 2-D dan sedimen yang digunakan adalah pasir dengan diameter seragam yaitu 1,8 mm a

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21

Chen, Li Qiang, Jun Xing Wang, and Yu Ting Chen. "Numerical Simulation on Backwater Downstream of Aerators in Spillway Tunnel with Ultra-Low Frounde Number Flow." Applied Mechanics and Materials 444-445 (October 2013): 539–43. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.539.

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The backtracking of flow occurs easily in cavity of aeration step in spillway tunnel with a gentle bottom slope and ultra-low Frounde number, and this influences the intake of air, so combined with the spillway tunnel of Chang heba Hydropower Station, four bodily form of aeration steps are chosen to be studied by both numerical simulation and model test based on κ-ε turbulence model, they are continuous aeration step, U-type aeration step + local steep slope, continuous aeration step + circular arc type steep slope and continuous aeration step + ogee curve steep slope, the results show that, t

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22

Aslami, M. H., A. J. Pierre, R. Franchitika, and A. B. Baria. "Improved rating curve development for ogee spillways using DualSPHysics: a comparative SPH approach." IOP Conference Series: Earth and Environmental Science 1488, no. 1 (2025): 012048. https://doi.org/10.1088/1755-1315/1488/1/012048.

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Abstract This study investigates the development of a rating curve for an ogee spillway using Smoothed Particle Hydrodynamics (SPH) simulations, specifically through the open-source DualSPHysics software. The numerical model was validated against experimental data and showed good agreement with water surface elevation predictions. A continuous, linearly increasing flow rate was simulated to generate a comprehensive dataset of discharge and water level values. Two methods for constructing the rating curve were compared: the traditional approach using Q = CLH 3/2 and a modified version using Q =

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Al Zubaidy, Riyadh Z., Khedher I. Khedher, and Asaad N. A. Darweesh. "Energy Dissipation on the Ogee Spillways by Using Direction Diverting Blocks." Journal of Engineering 22, no. 3 (2016): 77–88. http://dx.doi.org/10.31026/j.eng.2016.03.06.

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The purpose of this study is to evaluate the hydraulic performance and efficiency of using direction diverting blocks, DDBs, fixed on the surface on an Ogee spillway in reducing the acceleration and dissipating the energy of the incoming supercritical flow. Fifteen types of DDB models were made from wood with a triangulate shape and different sizes were used. Investigation tests on pressure distribution at the DDBs boundaries were curried out to insure there is no negative pressures is developed that cause cavitation. In these tests, thirty six test runs were accomplished by using six types of

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Hong, Seung Ho, Terry W. Sturm, and Juan A. González-Castro. "Transitional Flow at Low-Head Ogee Spillway." Journal of Hydraulic Engineering 144, no. 2 (2018): 04017062. http://dx.doi.org/10.1061/(asce)hy.1943-7900.0001398.

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N., J. SATHE, S. ASWAR D., A. HINGE G., and V. SURVE A. "STUDY OF END WEIR USING HEC-RAS OF GUNJWANI DAM SPILLWAY." IJIERT - International Journal of Innovations in Engineering Research and Technology 5, no. 6 (2018): 51–56. https://doi.org/10.5281/zenodo.1445889.

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<strong><strong> </strong>Hydraulic jump is the phenomenon in which the flow changes from superundal flow to subundal flow. The hydraulic jump concept is widely used in any hydraulic structures for energy dissipater at d/s side of the hydraulic structures. Hence Study of hydraulic jump is very important in such field. The HEC - RAS software is used to simulate the flow over ogee spillway. This software is used to determine the location of hydraulic jump and the nature of corresponding water surface profile. Results obtained from the H EC - RAS software are compared with theExperimental re

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Bainwad, Balaji. "Comparative Study of Ogee and Stepped Spillway for Enhancement of Energy Dissipation." Science and Technology - An International Journal 01, no. 01 (2024): 1–5. http://dx.doi.org/10.69738/staij.2024.01.01.0003.

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Stepped spillway is one of the oldest drop structures used in the construction of small dams Because of its simple form, its effectiveness as an energy dissipater. With this in regard the project aims to present the hydraulic design of stepped spillway for Ungated Garudeshwar Weir located at 12.10 km downstream of Sardar Sarovar Dam which is analyzed and modeled on Ansys 19.0 software. The proposed flow over the dam is analyzed for ogee spillways, results will be presented through this paper. The present discharge and the downstream velocities are obtained from the concerned authorities, which

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Chanel, Paul G., and John C. Doering. "Assessment of spillway modeling using computational fluid dynamics." Canadian Journal of Civil Engineering 35, no. 12 (2008): 1481–85. http://dx.doi.org/10.1139/l08-094.

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Throughout the design and planning period for future hydroelectric generating stations, hydraulic engineers are increasingly integrating computational fluid dynamics (CFD) into the process. As a result, hydraulic engineers are interested in the reliability of CFD software to provide accurate flow data for a wide range of structures, including a variety of different spillways. In the literature, CFD results have generally been in agreement with physical model experimental data. Despite past success, there has not been a comprehensive assessment that looks at the ability of CFD to model a range

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Schleiss, Anton J., Sebastien Erpicum, and Jorge Matos. "Advances in Spillway Hydraulics: From Theory to Practice." Water 15, no. 12 (2023): 2161. http://dx.doi.org/10.3390/w15122161.

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Over the past decades, significant advances have been achieved in hydraulic structures for dams, namely in water release structures such as spillway weirs, chutes, and energy dissipators. This editorial presents a brief overview of the eleven papers in this Special Issue, Advances in Spillway Hydraulics: From Theory to Practice, and frames them in current research trends. This Special Issue explores the following topics: spillway inlet structures, spillway transport structures, and spillway outlet structures. For the first topic of spillway inlet structures, this collection includes one paper

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Chatila, Jean, and Mazen Tabbara. "Computational modeling of flow over an ogee spillway." Computers & Structures 82, no. 22 (2004): 1805–12. http://dx.doi.org/10.1016/j.compstruc.2004.04.007.

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Alwan, Husam Hadi, Hayder H. H. Kamonna, and Noor Alaa Hashim. "EVALUATION OF LOCAL SCOUR DEVELOPMENT DOWNSTREAM AN APRON OF DIFFERENT ANGLES FOR AN OGEE SPILLWAY." Kufa Journal of Engineering 7, no. 3 (2016): 1–12. http://dx.doi.org/10.30572/2018/kje/731198.

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Local scour downstream of hydraulic structures, such as low head and high head structures, spillways, and culverts is an important research field due to its significant practical value. In this study laboratory experiments were conducted to compute the local scour downstream apron of an ogee spillway under different slopes of apron to study its effect on the characteristics of the scour. Developed physical models for spillway and aprons are installed into the water in the channel where conducted under subcritical flow and clear-water condition by using uniform cohesionless (soil) as bed materi

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Anbiya Taruna, Dwiva, Mohammad Bagus Adityawan, Joko Nugroho, Mohammad Farid, Arno Adi Kuntoro, and Widyaningtias. "Study of the relation between hydraulic jump and the flood water level in the river on the downstream of a spillway." MATEC Web of Conferences 270 (2019): 04012. http://dx.doi.org/10.1051/matecconf/201927004012.

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Kuningan Dam which is located in Kuningan District, West Java has 21,8 km2 watershed area. This dam also acts as a flood control facility which functions supported by the reservoir’s topography and its spillway building. The spillway building releases excess water from the dam into the downstream area. In the downstream part of the spillway, usually, hydraulic jump phenomenon occurs which depends on the flood water level of the river. The hydraulic jump used in the designing process of stilling basin length. The stilling basin in the spillway building generally designed using Q100. The spillwa

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Nail, Gregory H., and Raymond J. Kopsky. "Wappapello Dam Spillway Overtopping Event of 2011." Transactions of the Missouri Academy of Science 46, no. 2018 (2018): 69–82. http://dx.doi.org/10.30956/mas-22.

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Abstract The one-dimensional HEC-RAS multi-purpose open channel flow modeling software was successfully used, with ArcMap and HEC-GeoRAS, to simulate flow over the Wappapello Dam limited-use Ogee spillway (Wappapello, Missouri). Initial computational hydraulic modeling results predicted a lake elevation of 132.9 m (405.0 ft) [NAVD 1988] would be required for the resulting floodwaters overtopping the spillway to reach the nearby Wappapello Lake Management Office. An intense rainfall event during 2011 led to the spillway being overtopped for the first time since 1945. Spillway performance during

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Jafari-Nodoushan, Ehsan, Khosrow Hosseini, Ahmad Shakibaeinia, and Seyed-Farhad Mousavi. "Meshless particle modelling of free surface flow over spillways." Journal of Hydroinformatics 18, no. 2 (2015): 354–70. http://dx.doi.org/10.2166/hydro.2015.096.

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A meshless Lagrangian (particle) method based on the weakly compressible moving particle semi-implicit formulation (WC-MPS) is developed and analysed for simulation of flow over spillways. To improve the accuracy of the model for pressure and velocity calculation, some modifications are proposed and evaluated for the inflow and wall boundary conditions implementation methods. The final model is applied for simulation of flow over the 45° and 60° ogee spillways (with different inflow rates) and also shallow flow over a spillway-like curved bed channel. To evaluate the model, the numerical resul

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Kocaer, Öznur, and Alpaslan Yarar. "Experimental and Numerical Investigation of Flow Over Ogee Spillway." Water Resources Management 34, no. 13 (2020): 3949–65. http://dx.doi.org/10.1007/s11269-020-02558-9.

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Al-Fatlawi, Mohammed, and Abdulhassan Al-Shuker. "Experimental Investigation of Energy Dissipation in Ogee Spillway Using New Distributions of Dissipation Blocks." E3S Web of Conferences 427 (2023): 04006. http://dx.doi.org/10.1051/e3sconf/202342704006.

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Ogee spillway is the most important structure used to get rid of excess water during flood. Scouring phenomenon occurring in the downstream region due to high energy dissapation is an envitable. This study aims to reduce the amount of scour occurred at the downstream stilling basin of the ogee spillway by using three dissipation energy blocks namely as baffle, triangle and stepped blocks. A new distribution was proposed for each type of dissipated block, which varied between one row, two rows, and three rows. The flow and scour experimental tests were carried out under Froude numbers ranging f

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Karim, Rizgar, and Jowhar Mohammad. "SPH Open Boundary Simulation of Free-Surface Flow Over Ogee-crested Spillway." Tikrit Journal of Engineering Sciences 28, no. 2 (2021): 137–51. http://dx.doi.org/10.25130/tjes.28.2.11.

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This study was conducted to compare water surface profiles with standard ogeecrested spillways. Different methods were used, such as (experimental models, numerical models, and design nomographs for the United States Army Corps of Engineers, USACE). In accordance with the USACE specifications, three different models were constructed from rigid foam and then installed in a testing flume. The water surface profile has been recorded for these models with different design heads. For modeling the experimental model configurations, a numerical model based on the smoothed particle hydrodynamics (SPH)

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Azeez, Maryam H., and Riyadh Z. Azzubaidi. "Flow Over the Spillway of AlAdhiam Dam Under Gated Condition." Journal of Engineering 28, no. 11 (2022): 107–23. http://dx.doi.org/10.31026/j.eng.2022.11.08.

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The AlAdhaim Dam is located 133 kilometers northeast of Baghdad. It is a multipurpose dam and joints the Iraqi dam system in 2000. It has a storage capacity of 1.5 billion m3. The dam has an ogee spillway with a length of 562 m, a crest level of 131.5 m.a.m.s.l. and a maximum discharge capacity of 1150 m3/s at its maximum storage height of 143 m.a.m.s.l. This research aimed to investigate the hydrodynamics performance of the spillway and the stilling basin of AlAdhiam Dam by using numerical simulation models under gated situations. It was suggested to modify the dam capacity by increasing the

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Savage, Bruce M., and Michael C. Johnson. "Flow over Ogee Spillway: Physical and Numerical Model Case Study." Journal of Hydraulic Engineering 127, no. 8 (2001): 640–49. http://dx.doi.org/10.1061/(asce)0733-9429(2001)127:8(640).

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Bigillon, Françoise, Aslak Løvoll, and Bård Venås. "Multiple analysis approach for the design of the labyrinth spillway on the Nam Teng river, Myanmar: Concept design - CFD - physical model." E3S Web of Conferences 40 (2018): 05050. http://dx.doi.org/10.1051/e3sconf/20184005050.

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This paper presents the results of a combined approach - concept design, Computational Fluid Dynamics (CFD) simulations and physical model test - to design a spillway on the Nam Teng River in Myanmar. The spillway includes a 140 m wide labyrinth weir which ensures that the PMF flow QPMF=6800 m3/s passes with a maximum head of 5.5 m. The width required to pass PMF flow for a conventional ogee shaped weir is ca. 200m. The design of the spillway is based on design recommendations for labyrinth weirs from Tullis [1] and USBR guidelines to design the chute, stilling basin and outfall channel that l

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Nazirul Mubin Zahari, Mohd Hafiz Zawawi, Lariyah Mohd Sidek, Fei Chong Ng, and Mohamad Aizat Abas. "Discrete Particle Method Numerical Simulation on The Distributions of Suspended Particles in The Flow of Ogee Spillway Structure." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 98, no. 1 (2022): 42–55. http://dx.doi.org/10.37934/arfmts.98.1.4255.

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Dam failure is undeniably catastrophic and one of its major causes is the soil erosion near the dam structure. In this paper, the characteristics and compositions of soil sediment in dam spillway structure were investigated to determine its impact on the occurrence of erosion. Four suspended samples were taken from the vicinity of Ogee dam spillway. Sediment analysis using scanning electron microscope revealed that the soils consist of relative high metal contents of aluminium, iron and magnesium. These metals will attribute to the erosion of dam wall, which subsequently reduce the durability

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Maatooq, Jaafar Sadeq. "Stepped Spillway Hydraulic Model Investigation." Tikrit Journal of Engineering Sciences 13, no. 3 (2006): 103–20. http://dx.doi.org/10.25130/tjes.13.3.05.

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An experimental hydraulic model investigation was conducted to evaluate the performance of a stepped overflow spillway . The spillway tested has a standard ogee profile with continuous steps cut into a straight portion of downstream face from tangential point (P.T) to the toe . Five constant dimensions (h/l=1.4) steps were used . The objectives of the study are to evaluate the effectiveness of steps on the amount of energy loss under nappe , transision and skimming flow regime . A preliminary comparison with a standard spillway (WES) , that the average increase in energy dissipation at toe is

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Al-Fatlawi, Mohammed, and Abdulhassan Al-Shuker. "Application of ANSYS-Fluent Software for Innovative Stepped Dissipation Blocks Arrangement in Ogee Spillway." E3S Web of Conferences 427 (2023): 04002. http://dx.doi.org/10.1051/e3sconf/202342704002.

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The Ogee Spillway is one of the most crucial flood control structures, and it is developed at the same time as dams. The Ogee Spillway's downstream portions experience scouring due to flow, a problem that persists in reality. This paper aims to investigate the hydraulic performance of stepped block dissipater using a three-dimensional simulation model. The dissipated block was given a new distribution that may be one, two, or three rows in the transverse arrangement at a right angle with the path lines. The numerical simulations for flow and scour were performed using the computational fluid d

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Kim, Dae-Geun, Jae-Hyung Lee, and Il-Won Seo. "A Numerical Simulations on the Flow over Ogee Spillway with Pier." Journal of Korea Water Resources Association 37, no. 5 (2004): 363–73. http://dx.doi.org/10.3741/jkwra.2004.37.5.363.

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Luo, Chuyao, Abdolmajid Mohammadian, Ioan Nistor, and Hanifeh Imanian. "Experimental and numerical study of the gated and ungated ogee spillway." Flow Measurement and Instrumentation 97 (July 2024): 102561. http://dx.doi.org/10.1016/j.flowmeasinst.2024.102561.

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Zakia, Listi Putri Arsyi, Ratih Indri Hapsari, and Mona Shinta Safitri. "EVALUATION OF BAGONG DAM SPILLWAY AND STILLING BASIN DIMENSIONS COMPARING SYNTHETIC UNIT HYDROGRAPHS." Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK) 6, no. 1 (2025): 266–72. https://doi.org/10.33795/jos-mrk.v6i1.5764.

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Pada tahun 2022, Trenggalek mengalami banjir cukup besar yang mengakibatkan tenggelamnya beberapa kecamatan. Oleh karena itu, diperlukan penanggulangan dengan membangun bendungan, khususnya bangunan spillway untuk mengamankan tubuh bendungan. Focus penelitian ini adalah Bendungan Bagong yang terletak di Trenggalek. Penelitian ini bertujuan untuk mengevaluasi dimensi pelimpah dan kolam olak menggunakan perbandingan metode hidrograf satuan sintetik Nakayasu dan Gama I guna menentukan metode yang optimal. Hasil evaluasi menunjukkan bahwa metode Nakayasu memiliki nilai QPMF sebesar 804,173 m³/deti

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Khalid Ibrahim, Humam, and Ammar Hatem Kamel. "Flow Patterns Modeling over Spillway: Review Study." Salud, Ciencia y Tecnología - Serie de Conferencias 3 (June 14, 2024): 858. http://dx.doi.org/10.56294/sctconf2024858.

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A spillway dam, constructed concurrently with concrete or masonry, is a vital infrastructure designed to provide the controlled release of surplus water that surpasses the dam's storage capacity. Since the Ogee spillway is among the best and most well-known worldwide, it deserves study. Weir flow, inertia, and gravity are crucial in many open-channel applications. Consequently, hydraulic performance data between model and prototype structures are commonly scaled using Froude similitude. As the upstream head decreases in a weir flow, the surface tension and viscosity forces become more importan

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Kim, Dae-Geun, Jae-Hyun Park, and Jae-Hyung Lee. "A Numerical Simulations on the Flow over Ogee Spillway with Tainter Gate." Journal of Korea Water Resources Association 37, no. 8 (2004): 675–85. http://dx.doi.org/10.3741/jkwra.2004.37.8.675.

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Furlan, Paloma, Michael Pfister, Jorge Matos, and Anton J. Schleiss. "Spillway blockage caused by large wood in reservoirs." E3S Web of Conferences 40 (2018): 02037. http://dx.doi.org/10.1051/e3sconf/20184002037.

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Large wood (LW) elements are often transported by rivers into reservoirs during heavy rainfall events. Large wood has important environmental attributes that benefit the diversification of riverine ecosystems. There are several studies dealing with the transport and behaviour of LW inside streams. However, during flood events, LW tends to create jams or blockages at diverse hydraulic structures inside streams, creating significant problems such as discharge limitations and increased water levels. Even though knowledge on the effect of LW at bridges in rivers with relatively high flow velocitie

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MOHAMMED, JOWHAR R., BAHZAD M. A. NOORI, and IHSAN A. HUSSEIN. "MODELING OF THE HYDRAULIC PERFORMANCE OF OGEE SPILLWAY USING COMPUTATIONAL FLUID DYNAMICS (CFD)." Journal of The University of Duhok 20, no. 1 (2017): 638–53. http://dx.doi.org/10.26682/sjuod.2017.20.1.56.

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YARAR, Alpaslan. "ANALITICAL AND ARTIFICIAL NEURAL NETWORK MODELS OF DISCHARGE VALUE PASSING OVER OGEE SPILLWAY." Selcuk University Journal of Engineering ,Science and Technology 5, no. 3 (2017): 370–76. http://dx.doi.org/10.15317/scitech.2017.97.

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