ON ACCURACY OF THE ELEMENT-FREE GALERKIN (EFG) METHOD IN MODELING INCOMPRESSIBLE FLUID FLOW
I. Vlastelica, V. Isailović, T. Djukić, N. Filipović, M. Kojić
Abstract
Element-free Galerkin method (EFG) has been introduced in the nineties of last century (see
e.g. Belytschko et al. 1994, 1996). It represents a mesh-free method, particularly suitable for
problems where the FE method would need a remeshing procedure. The EFG has been mainly
used in solid mechanics for problems involving change of the boundary, as in case of fracture
propagation.
We have investigated applicability of the EFG in modeling incompressible fluid flow,
especially the solution accuracy when various numbers of free points and integration schemes
are employed. In this report we present our findings by analyzing solution of simple fluid flow
examples: flow on a plate and flow in a cavity.
