A discontinuous Galerkin based enriched finite volume method

In this report a new enriched finite volume method is introduced. This method will be particularly useful for fluid-structure interaction problems. In engineering many problems are in the domain of fluidstructure interaction. Examples of these are water in sea locks, blood flowing in vessels and sailing ships. Fluid problems are usually solved...

An implicit wetting–drying algorithm for the discontinuous Galerkin method: Application to the Tonle Sap, Mekong River Basin

The accurate simulation of wetting–drying processes in floodplains and coastal zones is a challenge for hydrodynamic modelling, especially for long time simulations. Indeed, dedicated numerical procedures are generally time-consuming, instabilities can occur at the wet/dry front, rapid transition of wet/dry interface and mass conservation are...

A Mass-Conserving Hybrid interface capturing method for geometrically complicated domains

Load Concentration Factor Based Analytical Method for Optimal Placement of Multiple Distribution Generators for Loss Minimization and Voltage Profile Improvement

This paper presents novel separate methods for finding optimal locations, sizes of multiple distributed generators (DGs) simultaneously and operational power factor in order to minimize power loss and improve the voltage profile in the distribution system. A load concentration factor (LCF) is introduced to select the optimal location(s) for DG...

Future energy systems and the protection of the electrical grid

One of the main research topics inside this thesis will be on what the effect will be on the present protection scheme when distributed generation units are extensively implemented inside the distribution system. The application of distributed generation will have an impact on the present protection scheme. This because the distributed...

Distributed G-MAC: A flexible MAC protocol for servicing Gossip Algorithms

A wireless sensor network is an embedded computer network formed by small cheap devices, prone to errors. Communication in such a network in a single-hop range is provided by a Medium Access Control (MAC) Protocol. Chess has developed one such a MAC protocol, Gossip-MAC (G-MAC), specifically designed to service gossiping-based traffic. G-MAC was...

Arbitrary high order accurate time integration schemes for linear problems

Numerical schemes for wave propagation over long distances need good wave propagation properties with low dispersion and low dissipation errors. Suitable numerical methods are methods with high order of accuracy in space and time. For space discretization on structured grids, high order finite difference schemes are efficient, and, if a...

A generalized patch AMR platform that uses cell centered or cell vertex solvers

A patch adaptive mesh refinement (AMR) platform is presented. Presently two Navier-Stokes solvers are available within this platform : a MUSCL and DG solver (FLUX AMR) and a multi-species MUSCL solver (MAJIC) for reacting flows. The first solver is based on cell centered approaches of finite volume type, the second solver is based on a cell...

Numerical Zoom for a Multi-Scale Problem

The domain is always a rectangular box, either because it is the physical domain or because it is the numerical zoom. The selection of the numerical zoom is done by the user within the public domain visualization software medit. A patch to the software has been written for us by P. Frey which allows to select a region with the mouse. Then the...