A three-dimensional extended finite element method is presented to simulate Stokes flow in complex geometries with internal moving parts. Instead of re-meshing the flow domain, the kinematics of the internal objects are imposed on the conservation equations using a constraint, implemented with a Lagrangian multiplier. To capture discontinuities of field variables, such as pressure and velocity, on the intersected elements, XFEM is used. To validate our method, it is first applied to a relatively simple problem, that is, the flow around a cylinder in a channel. The results are verified by comparing with a boundary-fitted solution. After validation of the model and its implementation, the three-dimensional flow in a twin-screw extruder is sim...
The eXtended Finite Element Method (X-FEM) has been successfully used in two-phase flow problems inv...
An extended finite element method (XFEM) is presented for the simulation of extrudate swell. A tempo...
International audienceThis work focuses on the development of a general finite element code devoted ...
A three-dimensional extended finite element method is presented to simulate Stokes flow in complex g...
Two different techniques to analyze non-Newtonian viscous flow in complex geometries with internal m...
We present direct numerical simulations for the flow of an Oldroyd-B fluid around a stationary cylin...
A computational model has been developed in this paper to solve three-dimensional unsteady incompres...
We present an extended finite element method (XFEM) for the direct numerical simulation of the flow ...
The classical finite element method can exhibit limitations if the solution is not regular across li...
In this paper a novel computational strategy consisting of a special combina-tion of numerical techn...
Abstract. The Multiscale Finite Element Method (MsFEM) is developed in the vein of Crouzeix-Raviart ...
International audienceA general solution for the 3D mold filling by incompressible viscous fluid is ...
The eXtended Finite Element Method (X-FEM) has been successfully used in two-phase flow problems inv...
An extended finite element method (XFEM) is presented for the simulation of extrudate swell. A tempo...
International audienceThis work focuses on the development of a general finite element code devoted ...
A three-dimensional extended finite element method is presented to simulate Stokes flow in complex g...
Two different techniques to analyze non-Newtonian viscous flow in complex geometries with internal m...
We present direct numerical simulations for the flow of an Oldroyd-B fluid around a stationary cylin...
A computational model has been developed in this paper to solve three-dimensional unsteady incompres...
We present an extended finite element method (XFEM) for the direct numerical simulation of the flow ...
The classical finite element method can exhibit limitations if the solution is not regular across li...
In this paper a novel computational strategy consisting of a special combina-tion of numerical techn...
Abstract. The Multiscale Finite Element Method (MsFEM) is developed in the vein of Crouzeix-Raviart ...
International audienceA general solution for the 3D mold filling by incompressible viscous fluid is ...
The eXtended Finite Element Method (X-FEM) has been successfully used in two-phase flow problems inv...
An extended finite element method (XFEM) is presented for the simulation of extrudate swell. A tempo...
International audienceThis work focuses on the development of a general finite element code devoted ...