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100
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SIAMSC
2008
146views more  SIAMSC 2008»
15 years 20 days ago
A Continuous Interior Penalty Method for Viscoelastic Flows
In this paper we consider a finite element discretization of the Oldroyd-B model of viscoelastic flows. The method uses standard continuous polynomial finite element spaces for vel...
Andrea Bonito, Erik Burman
87
Voted
SIAMSC
2008
132views more  SIAMSC 2008»
15 years 20 days ago
Stochastic Preconditioning for Diagonally Dominant Matrices
Abstract. This paper presents a new stochastic preconditioning approach for large sparse matrices. For the class of matrices that are row-wise and column-wise irreducibly diagonall...
Haifeng Qian, Sachin S. Sapatnekar
88
Voted
SIAMSC
2008
110views more  SIAMSC 2008»
15 years 20 days ago
Large-Eddy Simulation of Thermal Flows based on Discrete-Velocity Models
We derive a Godunov-type relaxation scheme for turbulent flows with heat transfer. The building block of this approach is a kinetic Boltzmann-type formulation for a model of turbul...
Mapundi K. Banda, Mohammed Seaïd, Ioan Teleag...
91
Voted
SIAMSC
2008
113views more  SIAMSC 2008»
15 years 20 days ago
Limited Data X-Ray Tomography Using Nonlinear Evolution Equations
A novel approach to the X-ray tomography problem with sparse projection data is proposed. Non-negativity of the X-ray attenuation coefficient is enforced by modelling it as max{(x)...
Ville Kolehmainen, Matti Lassas, Samuli Siltanen
SIAMSC
2008
127views more  SIAMSC 2008»
15 years 20 days ago
On Diagonally Relaxed Orthogonal Projection Methods
Abstract. We propose and study a block-iterative projections method for solving linear equations and/or inequalities. The method allows diagonal component-wise relaxation in conjun...
Yair Censor, Tommy Elfving, Gabor T. Herman, Toura...