Linear-constant velocity-pressure elements are enriched with residual-free macro bubbles. Static condensation prompts a stabilized method for this element, where mesh-dependent jumps of the normal stress are added across internal edges of the underlying macroelements. This procedure renders the SIMPLEST element stable.
Franca, L., Russo, A. (1996). Approximation of the Stokes problem by residual-free macro bubbles. EAST-WEST JOURNAL OF NUMERICAL MATHEMATICS, 4(4), 265-278.
Approximation of the Stokes problem by residual-free macro bubbles
RUSSO, ALESSANDRO
1996
Abstract
Linear-constant velocity-pressure elements are enriched with residual-free macro bubbles. Static condensation prompts a stabilized method for this element, where mesh-dependent jumps of the normal stress are added across internal edges of the underlying macroelements. This procedure renders the SIMPLEST element stable.
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