Results 21 to 30 of about 1,004 (184)

Approximation zones of the Saint-Venant equations f flood routing with overbank flow [PDF]

open access: yesHydrology and Earth System Sciences, 2000
The classification of river waves as gravity, diffusion or kinematic waves, corresponds to different forms of the momentum equation in the Saint-Venant system.
R. Moussa, R. Moussa, C. Bocquillon
doaj  

Experimental and smoothed particle hydrodynamics‐finite element method simulation investigation of synergistic erosion mechanism of gangue‐based abrasive water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang   +4 more
wiley   +1 more source

Gravel Replenishment Downstream of Dams: Insights From a Flume Experiment in a Straight Embanked Channel

open access: yesWater Resources Research
Gravel replenishment (GR) is a common strategy to mitigate the negative effects of sediment deficit caused by dam regulation. However, its effectiveness in restoring dam‐regulated embanked gravel‐bed rivers with alternate bars is still unclear.
Junjian Deng   +2 more
doaj   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

open access: yesDeep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou   +9 more
wiley   +1 more source

Jean Barré de Saint-Venant et la colonisation nouvelle

open access: yesDiciottesimo Secolo
The aim of this article is to explore the intellectual and political trajectory of the Dominguan planter, scientist, and agronomist Jean Barré de Saint-Venant (1737-1810).
Giulio Talini
doaj   +1 more source

Developing Semi-Analytical solutions for Saint-Venant Equations in the Uniform Flow Region

open access: yesمجله 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
doaj   +1 more source

Saint-Venant's Principle

open access: yesArchive for Rational Mechanics and Analysis, 1965
The principle of the elastic equivalence of statically equivalent systems of load, or Saint-Venant's Principle, is given a precise mathematical formulation and proof. Counterexamples to traditional verbal statements of the principle are given, and the results are compared with previous mathematical work on the Saint-Venant principle.
openaire   +2 more sources

Monolithic Framework to Simulate Fluid‐Structure Interaction Problems Using Geometric Volume‐of‐Fluid Method

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
A three‐dimensional fluid‐structure interaction (FSI) framework is developed using the geometric volume‐of‐fluid (VOF) interface capturing method and applied to assess largescale turbulent FSI interactions. The monolithic FSI framework is extensively validated, and despite the discontinuities across the interface, the FSI framework delivers stable and ...
Soham Prajapati   +2 more
wiley   +1 more source

A multi-model approach to Saint-Venant equations: A stability study by LMIs

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2012
This paper deals with the stability study of the nonlinear Saint-Venant Partial Differential Equation (PDE). The proposed approach is based on the multi-model concept which takes into account some Linear Time Invariant (LTI) models defined around a set ...
Dos Santos Martins Valérie   +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

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