TY: CONF
T1 - POST-PROCESSING TECHNIQUES SUITABILITY FOR MESOLEVEL FREE BOUNDARY FLOWS
A1 - Dimitrovová, Zuzana
N2 - Reliable flow simulation software is inevitable to determine an optimal injection
strategy in Liquid Composite Molding processes. Several methodologies can be implemented
into standard software in order to reduce CPU time. Post-processing techniques might be one
of them. Post-processing a finite element solution is a well-known procedure, which consists
in a recalculation of the originally obtained quantities such that the rate of convergence increases
without the need for expensive remeshing techniques. Post-processing is especially
effective in problems where better accuracy is required for derivatives of nodal variables in
regions where Dirichlet essential boundary condition is imposed strongly. In previous works
influence of smoothness of non-homogeneous Dirichlet condition, imposed on smooth front
was examined. However, usually quite a non-smooth boundary is obtained at each time step
of the infiltration process due to discretization. Then direct application of post-processing
techniques does not improve final results as expected. The new contribution of this paper lies
in improvement of the standard methodology. Improved results clearly show that the recalculated
flow front is closer to the ?exact? one, is smoother that the previous one and it improves
local disturbances of the ?exact? solution.
UR - http://run.unl.pt/handle/10362/4292
Y1 - 2010
PB - No publisher defined