Purpose: to develop and test a methodology for applying a hydrodynamic model to assess changes in canal hydraulic parameters following reconstruction aimed at increasing its capacity and operational reliability.
Materials and methods. A one-dimensional hydrodynamic model with ten cross-sections was constructed for an 11.4 km long picket of the Proletarsky Canal. Two scenarios are compared: with actual (before reconstruction) and design (after reconstruction) morphometric characteristics. The boundary conditions are determined by the flow rate dynamics at the initial picket and the water level at the final picket. The analysis included comparison of longitudinal profiles and construction of the “level – discharge area”, “level – hydraulic radius”, “level – flow rate” relationships, as well as flow charts of water levels, velocities, flows and volumes in characteristic sections (PK 2635 and PK 5135).
Results and discussion. The reconstruction resulted in an increase in the discharge area (by 33 % at a level of 25 m), an increase in the hydraulic radius (by 80 % at a level of 23 m, by 32 % at a level of 26 m), and an increase in the discharge (by 50 % at a level of 24 m, by 20 % at a level of 26 m). The water level dropped by 0.1–0.2 m, the flow velocity decreased by 0.1–0.15 m/s, and water volumes became larger and more stable. This indicates a transition to a more efficient, controllable, and safe hydraulic regime without the risk of erosion and flooding.
Conclusions. The reconstruction with the formation of a trapezoidal cross-section increased significantly the canal hydraulic efficiency. The developed methodology, based on hydrodynamic modeling, allows for an objective assessment of the consequences of reconstruction and can be recommended for widespread use in modernizing irrigation systems in arid regions of Russia.
reconstruction, irrigation canal, hydrodynamic model, capacity, hydraulic radius, discharge area, water level
Ponomarenko T. S., Gostishchev V. D. Hydrodynamic model application for assessment of the canal hydraulic parameters during reconstruction (using the example of the Proletarsky Canal section). Ways of Increasing the Efficiency of Irrigated Agriculture. 2025;97(3):31–45. (In Russ.).
1. Shchedrin V.N., Kolganov A.V., Vasiliev S.M., Churaev A.A., 2013. Orositel'nye sistemy Rossii: ot pokoleniya k pokoleniyu: monografiya. V 2 ch. Ch. 1 [Irrigation Systems of Russia: from Generation to Generation: monograph. In 2 parts. Part 1]. Novocherkassk, Gelikon Publ., 283 p., EDN: TRAHID. (In Russian).
2. Shevchenko V.A., Isaeva S.D., Dedova E.B., 2023. Novyy etap razvitiya meliorativno-vodokhozyaystvennogo kompleksa Rossiyskoy Federatsii [A new stage in the development of the land reclamation and water management complex of the Russian Federation]. Vestnik Rossiyskoy akademii nauk [Herald of the Russian Academy of Sciences], vol. 93, no. 4, pp. 355-361, DOI: 10.31857/S0869587323040114, EDN: SDJBQR. (In Russian).
3. Baev O.A., Kosichenko M.Yu., 2021. Voprosy rekonstruktsii krupnykh kanalov i otsenka ikh effektivnosti [Large canals reconstruction and their efficiency assessment]. Melioratsiya i gidrotekhnika [Land Reclamation and Hydraulic Engineering], vol. 11, no. 4, pp. 287-301, DOI: 10.31774/2712-9357-2021-11-4-287-301, EDN: QMDUPX. (In Russian).
4. Aldoshkin A.A., 2020. Kontseptsii neobkhodimosti razrabotki innovatsionnykh tekhnologiy stroitel'stva orositel'nykh sistem [Concepts of the need to develop innovative technologies for the irrigation system construction]. Vestnik meliorativnoy nauki [Herald of Land Reclamation Science], no. 2, pp. 58-65, EDN: QMFEVQ. (In Russian).
5. Gurin K.G., 2024. Otsenka gidravlicheskoy effektivnosti kanalov [Assessment of the hydraulic efficiency of channels]. Melioratsiya i vodnoe khozyaystvo: materialy Vserossiyskoy nauch.-prakt. konf. (Shumakovskie chteniya) [Land Reclamation and Water Management: Proceed. of the All-Russian Scientific and Practical Conf. (Shumakov Readings)]. Novocherkassk, Lik Publ., pp. 189-194, EDN: EGCESH. (In Russian).
6. Ponomarenko T.S., Breeva A.V., Kovalev S.V., Sulina V.A., 2020. Osobennosti podgotovki iskhodnykh dannykh dlya razrabotki komp'yuternykh gidrodinamicheskikh modeley [Specific features of preparing the initial data for the development of computer hydrodynamic models]. Puti povysheniya effektivnosti oroshaemogo zemledeliya [Ways of Increasing the Efficiency of Irrigated Agriculture], no. 1(77), pp. 14-18, EDN: RXCGMM. (In Russian).
7. Senchukov G.A., Ponomarenko T.S., 2022. Modelirovanie protsessov vodoraspredeleniya na Proletarskoy orositel'noy sisteme [Water distribution process modeling on the Proletarskaya irrigation system]. Melioratsiya i gidrotekhnika [Land Reclamation and Hydraulic Engineering], vol. 12, no. 1, pp. 141-156, DOI: 10.31774/2712-9357-2022-12-1-141-156, EDN: SZKJAD. (In Russian).
8. Ponomarenko T.S., 2014. Tsifrovoe komp'yuternoe modelirovanie gidrodinamicheskikh protsessov v srede MIKE [Digital computer modeling of hydrodynamic processes in the MIKE environment]. Puti povysheniya effektivnosti oroshaemogo zemledeliya [Ways of Increasing the Efficiency of Irrigated Agriculture, collection of scientific papers]. Novocherkassk, RosNIIPM, iss. 54, pp. 97-104, EDN: SZOHKZ. (In Russian).
9. Ponomarenko T.S., Breeva A.V., 2017. Rezul'taty stsenarnykh issledovaniy poli-funktsional'noy modeli Proletarskogo magistral'nogo kanala [The scenario studies results of the hydrodynamic model of the Proletarskiy main canal]. Puti povysheniya effektivnosti oroshaemogo zemledeliya [Ways of Increasing the Efficiency of Irrigated Agriculture, collection of scientific papers], no. 3(67), pp. 40-46, EDN: ZSQGPT. (In Russian).
10. Atashi V., Lim Ye.H., Mahmood T.H., 2024. Cold Region River Flood Mapping and Scour Potential Prediction: Insights from Hydraulic Model Using Advanced Autonomous Surface Vehicles. Environmental Processes, vol. 11, no. 3, pp. 46, DOI: 10.1007/s40710-024-00721-7, EDN: FWMWPR.
11. Latyshenkov A.M., 1966. Vybor naivygodneyshikh razmerov kanalov trapetsei-dal'noy formy [Selection of the most advantageous sizes of trapezoidal canals]. Gidrotekhnika i melioratsiya [Hydraulic Engineering and Land Reclamation], no. 5, pp. 5-12. (In Russian).
