Results 151 to 160 of about 573 (180)

Hybrid computer solution of the Saint Venant equations

2012
Abstract not available.
openaire   +2 more sources

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 ...
openaire   +1 more source

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
openaire   +1 more source

Asymptotic Stability of Steady-states for Saint-Venant Equations with Real Viscosity

2007
We deal with the viscous Saint-Venant model and analyze the stability of stationary steady states. We skip all of the technical details of the analysis, stressing only the kind of result we are able to prove at the present and the main lines of the proof.
MASCIA, Corrado, ROUSSET F.
openaire   +3 more sources

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.
openaire   +1 more source

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

Modeling of Surface Flow and Infiltration During Surface Irrigation Advance Based on Numerical Solution of Saint–Venant Equations Using Preissmann's Scheme

Pure and Applied Geophysics, 2022
Mohammad Shayannejad, Kaveh Ostad-Ali-Askari   +1 more
exaly  

New approaches to solving the Saint-Venant equations

2020
B.R. Hodges, C.-W. Yu, F. Liu
openaire   +1 more source

Comparison of solutions of Saint-Venant equations by characteristics and finite difference methods for unsteady flow analysis in open channel

International Journal of Hydrology Science and Technology, 2018
Mohammad Shayannejad, Kaveh Ostad-Ali-Askari   +1 more
exaly