Publications associées à Spectral method

High-order multiscale finite element method for elliptic problems

In this paper, a new high-order multiscale finite element method is developed for elliptic problems with highly oscillating coefficients. The method is inspired by the multiscale finite element method developed in [3], but a more explicit multiscale finite ...

Society for Industrial and Applied Mathematics2014

Bedrock topography reconstruction of glaciers from surface topography and mass-balance data

Marco Picasso, Laurent Michel, Heinz Blatter, Martin Funk

Three methods based on the three-dimensional shallow ice approximation of glacier flow are devised that infer a glacier's subglacial topography from the observation of its time-evolving surface and mass balance. The quasi-stationary inverse method relying ...

Springer2014

Reduced basis method for the Stokes equations in decomposable parametrized domains using greedy optimization

Alfio Quarteroni, Gianluigi Rozza, Laura Iapichino

Flow simulations in pipelined channels and several kinds of parametrized configurations have a growing interest in many life sciences and industrial applications. Applications may be found in the analysis of the blood flow in specific compartments of the c ...

Springer2014

Estimating the ice thickness of mountain glaciers with a shape optimization algorithm using surface topography and mass-balance

Marco Picasso, Laurent Michel, Heinz Blatter, Martin Funk

We present a shape optimization algorithm to estimate the ice thickness distribution within a two-dimensional, non-sliding mountain glacier, given a transient surface geometry and a mass-balance distribution. The approach is based on the minimization of th ...

De Gruyter2014

Weak second order explicit stabilized methods for stiff stochastic differential equations

Assyr Abdulle, Gilles Vilmart

We introduce a new family of explicit integrators for stiff Ito stochastic differential equations (SDEs) of weak order two. These numerical methods belong to the class of one-step stabilized methods with extended stability domains and do not suffer from th ...

Siam Publications2013

Large eddy simulation of the differentially heated cubic cavity flow by the spectral element method

Michel Deville, Emmanuel Leriche, Christoph Bosshard, Alfredo Soldati, Riccardo Puragliesi, Abdelouahab Dehbi

Large eddy simulations of the turbulent natural convection flow in a differentially heated cavity have been carried out at a Rayleigh number of 10(9) using the spectral element method. To obtain the large eddy simulation equations, a low pass filter given ...

Pergamon-Elsevier Science Ltd2013

Performance-Based Seismic Vulnerability Evaluation of Masonry Buildings Using Applied Element Method in a Nonlinear Dynamic-Based Analytical Procedure

Amin Karbassi

A thorough four-step performance-based seismic evaluation for a six-story unreinforced masonry building is conducted. Incremental dynamic analysis is carried out using the applied element method to take advantage of its ability to simulate progressive coll ...

Earthquake Engineering Research Inst2013

Active Testing Search for Point Cloud Matching

Pascal Fua, Raphael Sznitman, Jan Kybic, Miguel Amável Dos Santos Pinheiro

We present a general approach for solving the point-cloud matching problem for the case of mildly nonlinear transformations. Our method quickly finds a coarse approximation of the solution by exploring a reduced set of partial matches using an approach to ...

2013

Influence of confinement on obstacle-free turbulent wakes

François Gallaire, Luca Biancofiore

Large-eddy simulations (LESs) of obstacle-free wakes, in a channel like geometry with an homogeneous transverse direction, are carried out in order to investigate the influence of confinement on turbulent wakes. The numerical solver makes use of a multi-do ...

Elsevier2012

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Spectral method

Turing pattern formation driven by cross diffusion for a superdiffusive Lotka-Volterra competitive model

High-order multiscale finite element method for elliptic problems

Bedrock topography reconstruction of glaciers from surface topography and mass-balance data

Reduced basis method for the Stokes equations in decomposable parametrized domains using greedy optimization

Estimating the ice thickness of mountain glaciers with a shape optimization algorithm using surface topography and mass-balance

Weak second order explicit stabilized methods for stiff stochastic differential equations

Large eddy simulation of the differentially heated cubic cavity flow by the spectral element method

Performance-Based Seismic Vulnerability Evaluation of Masonry Buildings Using Applied Element Method in a Nonlinear Dynamic-Based Analytical Procedure

Active Testing Search for Point Cloud Matching

Influence of confinement on obstacle-free turbulent wakes

Graph Chatbot

Chattez avec Graph Search

Active Testing Search for Point Cloud Matching

Reduced basis method for the Stokes equations in decomposable parametrized domains using greedy optimization

Large eddy simulation of the differentially heated cubic cavity flow by the spectral element method

Bedrock topography reconstruction of glaciers from surface topography and mass-balance data

Turing pattern formation driven by cross diffusion for a superdiffusive Lotka-Volterra competitive model

Estimating the ice thickness of mountain glaciers with a shape optimization algorithm using surface topography and mass-balance

Performance-Based Seismic Vulnerability Evaluation of Masonry Buildings Using Applied Element Method in a Nonlinear Dynamic-Based Analytical Procedure

Weak second order explicit stabilized methods for stiff stochastic differential equations

High-order multiscale finite element method for elliptic problems

Influence of confinement on obstacle-free turbulent wakes