We show that three well-known ''variational crimes'' in finite elements-upwinding, mass lumping and selective reduced integration-may be derived from the Galerkin method employing the standard polynomial-based finite element spaces enriched with residual-free bubbles
Franca, L., Russo, A. (1996). Deriving upwinding, mass lumping and selective reduced integration by residual-free bubbles. APPLIED MATHEMATICS LETTERS, 9(5), 83-88 [10.1016/0893-9659(96)00078-X].
Deriving upwinding, mass lumping and selective reduced integration by residual-free bubbles
Russo, A.
1996
Abstract
We show that three well-known ''variational crimes'' in finite elements-upwinding, mass lumping and selective reduced integration-may be derived from the Galerkin method employing the standard polynomial-based finite element spaces enriched with residual-free bubbles
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