Results 21 to 30 of about 573 (178)
PI controllers for the general Saint-Venant equations
Journal de l’École polytechnique — Mathématiques, 2022 We study the exponential stability in the H 2 norm of the nonlinear Saint-Venant (or shallow water) equations with arbitrary friction and slope using a single proportional-integral (PI) control at one end of the channel. Using a good but simple Lyapunov function we find a simple and explicit condition on the gain of the PI control to ensure the ...
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Numerical modeling of the flood routing and zoning by Saint-Venant in the river Bostanak [PDF]
پژوهشهای زیرساختهای عمرانی, 2019 The equations governing transient open-channel flow are continuity and momentum equations that are known as Saint-Venant equation. Based on the simplifications of this equation, numerical models of flood routing are categorized.
Mohammad Reza Goodarzi, Amir Hoseini
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Modeling of Unsteady Flow through the Canals by Semiexact Method
Modelling and Simulation in Engineering, 2014 The study of free-surface and pressurized water flows in channels has many interesting application, one of the most important being the modeling of the phenomena in the area of natural water systems (rivers, estuaries) as well as in that of man-made ...
Farshad Ehsani +2 more
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Coupling Green-Ampt and Saint-Venant Equations for Estimating of Transmission Losses during Flood Routing in Rivers [PDF]
علوم و مهندسی آبیاری, 2016 Volume of flooding flow volume in ephemeral streams decreases due to evaporation as well as the channel wall and bed penetration. This process is known as transmission losses.
Sabah Mohammadi +2 more
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Methods of channel calculations to improve the operational mode of main canals [PDF]
E3S Web of Conferences, 2023 The article discusses solutions to improve the operational mode of the canal with an increase in throughput by means of self-washout, while maintaining the morphometric favorable stable cross-section of the canal for further reliable water supply of ...
Saparov A. B. +5 more
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Developing Semi-Analytical solutions for Saint-Venant Equations in the Uniform Flow Region
مجله آب و خاک, 2016 Introduction: Unsteady flow in irrigation systems is the result of operations in response to changes in water demand that affect the hydraulic performance networks.
M.M. Heidari, S. Kouchakzadeh
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Comptes Rendus. Mécanique, 2020 Adhémar Barré de Saint-Venant has significantly contributed to the engineering sciences. His professional career can be divided into mainly two parts. Namely, until 1852, he made contributions through his engineering works as a practicing engineer and ...
Hager, Willi H. +2 more
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Comparative Analysis of Transfer Function Method with Advanced Flood Prediction Techniques [PDF]
Water Harvesting ResearchIn this paper, the evaluation of the performance of five flood prediction models in the Simineh-Rood River, Lake Urmia basin, Iran, is discussed in detail.
Jafar Chabokpour
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A Momentum-Conserving Scheme for Flow Simulation in 1D Channel with Obstacle and Contraction
Fluids, 2021 We consider the extension of the momentum conservative staggered-grid (MCS) scheme for flow simulation in channels with varying depth and width. The scheme is formulated using the conservative properties of the Saint-Venant equations. The proposed scheme
Putu Veri Swastika +3 more
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Axioms, 2020 The paper is devoted to solutions of the third order pseudo-elliptic type equations. An energy estimates for solutions of the equations considering transformation’s character of the body form were established by using of an analog of the Saint-Venant ...
Abdukomil Risbekovich Khashimov +1 more
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