Results 101 to 110 of about 290 (130)

Boundary control of linearized Saint-Venant equations oscillating modes

2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601), 2004
Les équations de Saint-Venant décrivent la dynamique unidimensionnelle d`un canal à surface libre. L`article étudie les modes oscillants de l`équation de Saint-Venant linéarisée et leur contrôle. Nous montrons qu`il est possible de supprimer les modes oscillants sur tout le canal en utilisant un contrôleur frontière utilisant uniquement la mesure du ...
Litrico, Xavier, Fromion, Vincent
openaire   +5 more sources

Green’s function of the linearized Saint-Venant equations in laminar and turbulent flows

Acta Geophysica, 2011
In the present paper, an analytical expression of the Green’s function of linearized Saint–Venant equations (LSVEs) for shallow water waves is provided and applied to analyse the propagation of a perturbation superposed to a uniform flow. Independently of the kinematic character of the base flow, i.e., subcritical or supercritical uniform flow, the ...
DI CRISTO C, IERVOLINO, Michele, VACCA, Andrea   +2 more
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A characteristic particle method for the Saint Venant equations

Computers & Fluids, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

ODE solution to the characteristic form of the Saint-Venant equations

Irrigation Science, 2007
An ordinary differential equation algorithm was formulated to approximate the solution to the characteristic form of the Saint-Venant equations for one-dimensional, gradually varied, unsteady open-channel flow in prismatic irrigation canals. The algorithm was applied by developing a network of characteristics using difference equations for randomly ...
S. J. Chun, G. P. Merkley
openaire   +1 more source

Numerical Integration of the System of Saint Venant Equations

2009
This chapter begins with brief review of the numerical methods applicable for the Saint Venant equations. Detailed description of the finite difference Preissmann scheme and of the modified finite element method used for a channel with fixed bed is provided.
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De Saint-Venant Equations Experimentally Verified

Journal of the Hydraulics Division, 1971
The unsteady spatially varied flow equations (De Saint-Venant equations) are being solved by implicit finite differences with explicit description at the boundaries. Imposition of improper boundary conditions which violate the physics of the problem resulted into either violation of continuity or numerical instability problems or meaningless results ...
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Hybrid computer solution of the Saint Venant equations

2012
Abstract not available.
openaire   +2 more sources

Pivoting Strategies in the Solution of the Saint-Venant Equations

Journal of Irrigation and Drainage Engineering, 2009
Pivoting was incorporated in the process of solving the linear system of equations that results after discretizing the Saint- Venant equations using the four-point implicit scheme, and applying the Newton–Raphson algorithm to the resulting set of nonlinear equations.
openaire   +1 more source

Shooting Method for Saint Venant Equations of Furrow Irrigation

Journal of Irrigation and Drainage Engineering, 1990
Flow in surface irrigation is subcritical and downstream conditions can propagate upstream. The shooting or initialvalue method started from the downstream end and proceeded upstream against the fl...
W. W. Wallender, Mohammad Rayej
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A pure finite-element method for the Saint-Venant equations

Coastal Engineering, 1982
Abstract The Saint-Venant system of partial differential equations is solved by a pure finite-element method, in which integrations in both space and time are performed by utilizing Galerkin's procedure. With a special treatment of the non-linear terms, the problem is finally reduced to a linear system of algebraic equations that is solved by the ...
openaire   +1 more source