Results 11 to 20 of about 290 (130)

Ensemble modeling of stochastic unsteady open-channel flow in terms of its time–space evolutionary probability distribution – Part 1: theoretical development [PDF]

open access: yesHydrology and Earth System Sciences, 2018
The Saint-Venant equations are commonly used as the governing equations to solve for modeling the spatially varied unsteady flow in open channels. The presence of uncertainties in the channel or flow parameters renders these equations stochastic, thus
A. Dib, M. L. Kavvas
doaj   +1 more source

Comparison and Optimization of Sparse Matrix Solution Methods in One-dimensional Saint-Venant Equation Difference Numerical Algorithm

open access: yesGuan'gai paishui xuebao, 2021
【Background】 In order to alleviate the shortage of water resources, China has established many water transfer projects. Due to its long water transfer distance, large water delivery volume, and numerous water passing buildings along the line, the control
WANG Haohua   +2 more
doaj   +1 more source

Analytic Normalized Solutions of 2D Fractional Saint-Venant Equations of a Complex Variable

open access: yesJournal of Function Spaces, 2021
Saint-Venant equations describe the flow below a pressure surface in a fluid. We aim to generalize this class of equations using fractional calculus of a complex variable.
Najla M. Alarifi, Rabha W. Ibrahim
doaj   +1 more source

PI controllers for the general Saint-Venant equations

open access: yesJournal 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 ...
openaire   +4 more sources

FLASH FLOODS SIMULATION USING SAINT VENANT EQUATIONS [PDF]

open access: yesInternational Conference on Aerospace Sciences and Aviation Technology, 2007
Flash floods prediction is considered one of the important environmental issues worldwide. In order to predict when and where the flood wave will invade and attack our lives, and provide solutions to deal with this problem it is essential to develop a reliable model that simulates accurately this physical phenomena.
Elhanafy, Hossam, Copeland, Graham J.M.
openaire   +3 more sources

Comportamiento de las ecuaciones de Saint-Venant en 1D y aproximaciones para diferentes condiciones en régimen permanente y variable

open access: yesTecnura, 2015
The importance of the behavior of the Saint Venant equations and its implications for flow analysis applied to models of hydraulic transit is the main theme of this research, where the basis of the applications and uses of these mathematical models is ...
Gloria Estefany Amarís Castro   +2 more
doaj   +1 more source

Numerical Simulation of Flood Routing using the Simplified Saint Venant Equations in Rectangular Channels

open access: yesInPrime, 2021
Floods, which cause a lot of damage, are a natural phenomenon that often occurs during the rainy season. Flood occurs because the discharge entering the channel exceeds the channel capacity. If the discharge data in the upstream area that will enter the
Bambang Agus Sulistyono   +2 more
doaj   +1 more source

On uniqueness of a classical solution of the system of non-linear 1-D Saint Venant equations

open access: yesVietnam Journal of Mechanics, 1999
In this paper the theorem of uniqueness of a classical solution of the system of non-linear 1-D Saint Venant equations is proved. This uniqueness theorem is setup for the system of non-linear 1-D Saint Venant equations in canonical form under respective
Hoang Van Lai   +2 more
doaj   +1 more source

Numerical modeling of the flood routing and zoning by Saint-Venant in the river Bostanak [PDF]

open access: yesپژوهش‌های 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
doaj   +1 more source

Modeling of Unsteady Flow through the Canals by Semiexact Method

open access: yesModelling 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
doaj   +1 more source

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