Results 21 to 30 of about 57,121 (213)

On Saint Venant - Kirchhoff imperfect interfaces [PDF]

International Journal of Non-Linear Mechanics, 2017
Using matched asymptotic expansions with fractional exponents, we obtain original transmission conditions describing the limit behavior for soft, hard and rigid thin interphases obeying the Saint Venant-Kirchhoff material model. The novel transmission conditions, generalizing the classical linear imperfect interface model, are discussed and compared ...
Rizzoni, Raffaella, Dumont, Serge, Lebon, Frédéric   +2 more
openaire   +3 more sources

A "well-balanced" finite volume scheme for blood flow simulation [PDF]

, 2012
We are interested in simulating blood flow in arteries with a one dimensional model. Thanks to recent developments in the analysis of hyperbolic system of conservation laws (in the Saint-Venant/ shallow water equations context) we will perform a simple ...
Alastruey, Audusse, Audusse, Bermudez, Bermúdez, Berthon, Bouchut, Bouchut, Bouchut, Burguete, Castro, Castro, Cavallini, Cavallini, Delestre, Fernández, Fiedler, Formaggia, Fullana, Gallouët, Gosse, Goutal, Greenberg, Harten, Harten, Harten, Hou, Jin, Kirkman, Kurganov, Lagrée, Lagrée, Lagrée, Lee, LeVeque, LeVeque, LeVeque, Liang, Lighthill, Lukáčová-Medvid'ová, Lukáčová-Medvid'ová, Mangeney, Mangeney-Castelnau, Marchandise, Marche, Marche, Martin, Noelle, Noelle, Ockendon, Olufsen, Olufsen, Parker, Pedley, Perthame, Pindera, Popinet, Saint Venant, Saito, Sherwin, Shu, Stergiopulos, Stoker, Tatard, Thanh, Valiani, van Leer, Van Steenhoven, Vosse, Vàzquez-Cendòn, Willemet, Womersley, Xiu, Zagzoule, Zagzoule   +74 more
core   +5 more sources

An energy-consistent depth-averaged Euler system: derivation and properties [PDF]

, 2014
In this paper, we present an original derivation process of a non-hydrostatic shallow water-type model which aims at approximating the incompressible Euler and Navier-Stokes systems with free surface. The closure relations are obtained by aminimal energy
Bristeau, Marie-Odile, Mangeney, Anne, Sainte-Marie, Jacques, Seguin, Nicolas   +3 more
core   +6 more sources

Comparative Analysis of Transfer Function Method with Advanced Flood Prediction Techniques [PDF]

Water Harvesting Research
In 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
doaj   +1 more source

Modelling rollers for shallow water flows [PDF]

, 2013
Hydraulic jumps, roll waves or bores in open channel flows are often treated as singularities by hydraulicians while slowly varying shallow water flows are described by continuous solutions of the Saint-Venant equations. Richard & Gavrilyuk (J.
Thual, Olivier
core   +5 more sources

Consistent initial conditions for the Saint-Venant equations in river network modeling [PDF]

Hydrology and Earth System Sciences, 2017
Initial conditions for flows and depths (cross-sectional areas) throughout a river network are required for any time-marching (unsteady) solution of the one-dimensional (1-D) hydrodynamic Saint-Venant equations.
C.-W. Yu, F. Liu, B. R. Hodges
doaj   +1 more source

Surface flows of granular materials: A short introduction to some recent models

, 2002
We present a short review of recent theoretical descriptions of flows occuring at the surface of granular piles, and focus mainly on two models: the phenomenological ``BCRE'' model and the hydrodynamic model, based on Saint-Venant equations.
Achod Aradian, Aradian, Aranson, Aranson, Bocquet, Bonamy, Bonamy, Bouchaud, Bouchaud, Boutreux, Boutreux, de Gennes, de Gennes, Dorogovtsev, Douady, Gray, Khakhar, Komatsu, Lemaı̂tre, Mehta, Pierre-Gilles de Gennes, Pouliquen, Rajchenbach, Rajchenbach, Savage, Terzidis, Élie Raphaël   +26 more
core   +2 more sources

Application of Lattice Boltzmann Method for Surface Runoff in Watershed [PDF]

, 2017
Derived from simplifications of the Saint-Venant equations, the kinematic wave model has the ability to describe the behavior of surface runoff in watersheds.
Cargnelutti, J., Galina, V., Gramani, L.M., Kaviski, E., Lobeiro, A.M.   +4 more
core   +3 more sources

Layer-averaged Euler and Navier-Stokes equations [PDF]

, 2016
In this paper we propose a strategy to approximate incompressible hydrostatic free surface Euler and Navier-Stokes models. The main advantage of the proposed models is that the water depth is a dynamical variable of the system and hence the model is ...
Bristeau, Marie-Odile, Di Martino, Bernard, Guichard, Cindy, Sainte-Marie, Jacques   +3 more
core   +4 more sources

Numerical study of the applicability of the Saint-Venant principle

MATEC Web of Conferences, 2017
The limits of the applicability of the Saint-Venant principle are investigated while using the LIRA-CAD app. A large number of bars loaded at the end with different loads are considered.
Paushkin Alexander, Saiyan Sergey
doaj   +1 more source