The numerical approximation of incompressible fluid-structure interaction problems with Lagrange multiplier is generally based on strongly coupled schemes. This delivers unconditional stability but at the expense of solving a computationally demanding coupled system at each time-step. For the case of the coupling with immersed thin-walled solids, we introduce a class of semi-implicit coupling schemes which avoids strongly coupling without compromising stability and accuracy. A priori energy and error estimates are derived. The theoretical results are illustrated through numerical experiments in an academic benchmark. fluid-structure interaction, immersed boundary method, Lagrange multiplier, finite elements, time-splitting schemes.
El renovado interés por los métodos psicológicos al que hemos asistido durante el presente siglo, nos ha traído un enfoque inusitado hacia la Maternidad y el Parto, como un fenómeno natural y normalmente indoloro.
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