Publications related to Linear stability analysis of time-dependent algorithms with spectral element methods for the simulation of viscoelastic flows

Reduced Variational Formulations in Free Boundary Continuum Mechanics

We present the material, spatial, and convective representations for elasticity and fluids with a free boundary from the Lagrangian reduction point of view, using the material and spatial symmetries of these systems. The associated constrained variational ...

Springer-Verlag2012

On stable self-similar blow up for equivariant wave maps: The linearized problem

Roland Donninger

We consider co-rotational wave maps from (3+1) Minkowski space into the three-sphere. This is an energy supercritical model which is known to exhibit finite time blow up via self-similar solutions. The ground state self-similar solution

f_0

is known in c ...

2012

Thermal-diffusive instabilities in unstretched, planar diffusion flames

Peter Monkewitz, Etienne Robert

The recent development of a novel research burner at EPFL has opened the way for experimental investigations of essentially unstretched planar diffusion flames. In particular, it has become feasible to experimentally validate theoretical models for thermal ...

Elsevier2012

Simulation of Time-Dependent Viscoelastic Fluid Flows by Spectral Elements

Azadeh Jafari

The research work reported in this dissertation is aimed to develop efficient and stable numerical schemes in order to obtain accurate numerical solution for viscoelastic fluid flows within the spectral element context. The present research consists in the ...

EPFL2011

Multi-component particle size segregation in shallow granular avalanches

Christophe Ancey

A general continuum theory for particle size segregation and diffusive remixing in polydisperse granular avalanches is formulated using mixture theory. Comparisons are drawn to existing segregation theories for bi-disperse mixtures and the case of a ternar ...

Cambridge University Press2011

Fluid Structure Interaction Simulations of Physiological Blood Flow in the Aorta

Alfio Quarteroni, Nikolaos Stergiopoulos, Simone Deparis, Philippe Reymond, Paolo Crosetto, Dimitrios Kontaxakis

The numerical tools to simulate blood flow in the cardiovascular system are constantly developing due to the great clinical interest and to scientific advances in mathematical models and computational power. The present work aims to address and validate ne ...

Elsevier2011

Fluid-Structure Interaction Problems in Hemodynamics

Paolo Crosetto

In this work we aim at the description, study and numerical investigation of the fluid-structure interaction (FSI) problem applied to hemodynamics. The FSI model considered consists of the Navier-Stokes equations on moving domains modeling blood as a visco ...

EPFL2011

Quasistatic to inertial transition in granular materials and the role of fluctuations

Johan Alexandre Philippe Gaume

On the basis of discrete element numerical simulations of a Couette cell, we revisit the rheology of granular materials in the quasistatic and inertial regimes, and discuss the origin of the transition between these two regimes. We show that quasistatic zo ...

2011

General regularized boundary condition for multi-speed lattice Boltzmann models

Orestis Pileas Malaspinas, Jonas Marcel Lätt

The lattice Boltzmann method is nowadays a common tool for solving computational fluid dynamics problems. One of the difficulties of this numerical approach is the treatment of the boundaries, because of the lack of physical intuition for the behavior of t ...

2011

Modeling Magma Dynamics with a Mixed Fourier Collocation - Discontinuous Galerkin Method

Jan Sickmann Hesthaven

A high-order discretization consisting of a tensor product of the Fourier collocation and discontinuous Galerkin methods is presented for numerical modeling of magma dynamics. The physical model is an advection-reaction type system consisting of two hyperb ...

GLOBAL SCIENCE PRESS2011

Linear stability analysis of time-dependent algorithms with spectral element methods for the simulation of viscoelastic flows

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Reduced Variational Formulations in Free Boundary Continuum Mechanics

On stable self-similar blow up for equivariant wave maps: The linearized problem

Thermal-diffusive instabilities in unstretched, planar diffusion flames

Simulation of Time-Dependent Viscoelastic Fluid Flows by Spectral Elements

Multi-component particle size segregation in shallow granular avalanches

Fluid Structure Interaction Simulations of Physiological Blood Flow in the Aorta

Fluid-Structure Interaction Problems in Hemodynamics

Quasistatic to inertial transition in granular materials and the role of fluctuations

General regularized boundary condition for multi-speed lattice Boltzmann models

Modeling Magma Dynamics with a Mixed Fourier Collocation - Discontinuous Galerkin Method

Multi-component particle size segregation in shallow granular avalanches

General regularized boundary condition for multi-speed lattice Boltzmann models

On stable self-similar blow up for equivariant wave maps: The linearized problem

Reduced Variational Formulations in Free Boundary Continuum Mechanics

Thermal-diffusive instabilities in unstretched, planar diffusion flames

Quasistatic to inertial transition in granular materials and the role of fluctuations

Simulation of Time-Dependent Viscoelastic Fluid Flows by Spectral Elements

Fluid Structure Interaction Simulations of Physiological Blood Flow in the Aorta

Fluid-Structure Interaction Problems in Hemodynamics

Modeling Magma Dynamics with a Mixed Fourier Collocation - Discontinuous Galerkin Method