New computational challenges in fluid-structure interactions problems

Published in ECCOMAS Multidisciplinary Jubilee Symposium, J. Eberhardsteiner, Ch. Hellmich, H. Mang and J. Périaux (Eds.), 2009
DOI: 10.1007/978-1-4020-9231-2_2

Abstract

In this paper the so-called added-mass effect is investigated from a different point of view of previous publications. The monolithic fluid structure problem is partitioned using a static condensation of the velocity terms. Following this procedure the classical stabilized projection method for incompressible fluid flows is introduced. The procedure allows obtaining a new pressure segregated scheme for fluid-structure interaction problems which has good convergent characteristics even for biomechanical application, where the added mass effect is strong. The procedure reveals its power when it is shown that the same projection technique must be implemented in staggered FSI methods.