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An efficient ‘a priori’ model reduction for boundary element models
Ryckelynck, D. and Hermanns, Lutz Karl Heinz and Chinesta, F. and Alarcón Álvarez, Enrique
An efficient ‘a priori’ model reduction for boundary element models.
"Engineering Analysis with Boundary Elements", v. 29
The Boundary Element Method (BEM) is a discretisation technique for solving partial differential equations, which offers, for certain problems, important advantages over domain techniques. Despite the high CPU time reduction that can be achieved, some 3D problems remain today untreatable because the extremely large number of degrees of freedom—dof—involved in the boundary description. Model reduction seems to be an appealing choice for both, accurate and efficient numerical simulations. However, in the BEM the reduction in the number of degrees of freedom does not imply a significant reduction in the CPU time, because in this technique the more important part of the computing time is spent in the construction of the discrete system of equations. In this way, a reduction also in the number of weighting functions, seems to be a key point to render efficient boundary element simulations.
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