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MOC
2010
13 years 6 months ago
Unified primal formulation-based a priori and a posteriori error analysis of mixed finite element methods
We derive in this paper a unified framework for a priori and a posteriori error analysis of mixed finite element discretizations of second-order elliptic problems. It is based on ...
Martin Vohralík
MJ
2010
198views Multimedia» more  MJ 2010»
13 years 6 months ago
Electromagnetic energy harvesting from flow induced vibration
A new electromagnetic energy harvester for harnessing energy from flow induced vibration is developed. It converts flow energy into electrical energy by fluid flow and electromagn...
D.-A. Wang, K.-H. Chang
VC
2002
145views more  VC 2002»
13 years 11 months ago
Visualization and pre-processing of independent finite-element meshes for car crash simulations
The recent transition from meshing the whole model towards the independent meshing of the assembly parts introduced new challenges also in the task of visualizing and pre-processi...
Norbert Frisch, Dirc Rose, Ove Sommer, Thomas Ertl
MOC
2002
70views more  MOC 2002»
13 years 11 months ago
Positivity preserving finite element approximation
We consider finite element operators defined on "rough" functions in a bounded polyhedron in RN . Insisting on preserving positivity in the approximations, we discover a...
Ricardo H. Nochetto, Lars B. Wahlbin
MOC
2002
81views more  MOC 2002»
13 years 11 months ago
Analysis of a bilinear finite element for shallow shells I: Approximation of inextensional deformations
We consider a bilinear reduced-strain finite element formulation for a shallow shell model of Reissner
Ville Havu, Juhani Pitkäranta
COMPUTING
1999
128views more  COMPUTING 1999»
13 years 11 months ago
A Multigrid Method for Nonconforming FE-Discretisations with Application to Non-Matching Grids
Nonconforming finite element discretisations require special care in the construction of the prolongation andrestrictioninthemultigridprocess. Inthispaper,ageneralschemeisproposed...
Dietrich Braess, Maksimillian Dryja, Wolfgang Hack...
MOC
2000
124views more  MOC 2000»
13 years 11 months ago
Local and parallel finite element algorithms based on two-grid discretizations
A number of new local and parallel discretization and adaptive finite element algorithms are proposed and analyzed in this paper for elliptic boundary value problems. These algorit...
Jinchao Xu, Aihui Zhou
MOC
2000
109views more  MOC 2000»
13 years 11 months ago
A mixed formulation of Boussinesq equations: Analysis of nonsingular solutions
Abstract. This paper is concerned with the mixed formulation of the Boussinesq equations in two-dimensional domains and its numerical approximation. The paper deals first with exis...
M. Farhloul, S. Nicaise, L. Paquet
MOC
2000
62views more  MOC 2000»
13 years 11 months ago
Uzawa type algorithms for nonsymmetric saddle point problems
In this paper, we consider iterative algorithms of Uzawa type for solving linear nonsymmetric saddle point problems. Specifically, we consider systems, written as usual in block fo...
James H. Bramble, Joseph E. Pasciak, Apostol T. Va...
EWC
2000
106views more  EWC 2000»
13 years 11 months ago
Object Oriented Tools for Scientific Computing
A set of object oriented tools is presented which, when combined, yield an efficient parallel finite element program. Special emphasis is given to details within the concept of the...
Philippe R. B. Devloo