A 2D numerical simulation of the Po river delta flow
A numerical simulation of the steady flow in the proximity of the delta of the Po river has been carried out. We consider the 2D quasi-hydrostatic model, approximating non conservation...
An Adaptive Nine-Point Finite Volume Roe Scheme for Two-Dimensional Saint-Venant Equations
The system of Saint Venant equations is considered numerically. A Roe approximate solver coupled to a nine-point finite volume spatial discretization is introduced at the same time as...
2D Finite Element Modelling of Flooding Due to River Bank Collapse
To compute the flood propagation over an initially dry area a new set of 2D equations has been recently proposed which accounts for the ground unevenness effects. The paper presents a...
A New Set of Equations for Very Shallow Water and Partially Dry Areas Suitable to 2D Numerical Models
When a 2D model is used to compute the flood propagation over an initially dry area some difficulties arise due to the changes in the computational domain as large parts of it are flooded...
A Control Volume Finite Element Method for the Solution of 2-D Overland Flow Problems
This article introduces the Control Volume Finite Element Method (CVFEM) for the solution of 2-D overland flow problems. The CVFEM integrates the advantages of both Finite Element (FE)...
Finite Element Algorithms for Modelling Flood Propagation
The paper details the numerical solutions adopted in the TELEMAC-2D code that solves the shallow water equations. The numerical choices have been driven by the need for computational efficiency...
Adaptive Numerical Methods for Transport Dominated Processes
The numerical approximation of processes of transport and diffusion can be very challenging when the diffusion is small compared to the convection. Standard Galerkin methods need to be...
Quasi-Two Dimensional Modelling of Flood Routing in Rivers and Flood Plains by Means of Storage Cells
A quasi-two dimensional numerical model for flood routing in rivers and flood plains has been developed. In the river, the St Venant equations are integrated using the implicit finite...
Object-Oriented Finite Volume Dam-Break Model
This paper is devoted to Object-Oriented analysis and design techniques to two computational modules in the field of dam-breaking. The C++ Object-Oriented...
Modelling of Flood Wave Propagation Over Flat Dry Areas of Complex Topography in Presence of Different Infrastructures
After a description of the general equations which govern the propagation of a 2D flood wave (shallow water equations), a review of the scientific publications on the integration of their...
New Methods for Modelling Dam-Break Wave
Recent developments in numerical analysis for hyperbolic equations have led to new methods which solve shallow water equations including complementary equations for hydraulic jumps. An...
Computation of a flood event using a two dimensional finite element model and its comparison to field data
This paper reports on an attempt to begin a rigorous field testing programme for two dimensional finite element flow models, examining the impacts of mesh resolution and numerical method...
Two-Dimensional Dam-Break Flow Simulation in a Sudden Enlargement
The paper presents the use of a two-dimensional depth averaged mathematical model for an unsteady dam-break flow simulation in a sudden enlargement. Continuity and two momentum equations...
Free surface flow modelling on a complex topography
The aim of this paper is to describe the different construction stages and the validation of a free surface flow model on a complex topography. This model is based on the two dimensional...
Two-Dimensional Modelling of Flow in the River Sava
On the river Sava near Ljubljana, a sports centre with a kayak racing channel was built in 1948. For the world championship in kayak-canoe racing in 1990 totally new racing channel had...
Flood Propagation on Mobile Beds under Mountainous Flow Conditions
An implicit finite-volume scheme is used to solve the shallow water equations under mountainous flow conditions. The algorithm is stable for sub- and supercritical flows and moving internal...
A Computerized Open Channel Flow Measurement Device
This is a technical information paper with the intention of introducing a new product. It is not the intent of the author to use this as a marketing tool. However, it is the intent to...
Velocity Measurements by the One-Orange Method
Application of the most sophisticated instrumentation - so called state-of-the-art equipment - is not always necessary nor even desirable for measurement of mean velocities in verticals,...
Hot-Film Response in Three-Dimensional Highly Turbulent Flows
A methodology is described for accurate turbulence measurements with hot film or hot wires even at turbulent intensities as high as 100%. The assumptions involved and the approximations...
Estimation of Mean Velocity for Flow Under Ice Cover
Methods of estimating mean velocity in a vertical from point velocity measurements are compared for an ice-covered channel. The comparison is based on velocity profiles obtained from a...
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