Modified fixed point algorithm in fluid–structure interaction
In this work, we address the numerical solution of some non-linear problems arising in the time discretization of fluid–structure interaction problems with fully implicit schemes. At each time step, we have to solve a highly non-linear coupled system, since the fluid domain depends on the unknown displacement of the structure. We propose a modified fixed-point algorithm which combines the Block-Gauss–Seidel iterations with a transpiration formulation. Numerical experiments show the great improvement in computing time with respect to the standard method.
Keywords: Computational fluid mechanics ; Fluid–structure interaction ; Block-Gauss–Seidel iterations ; Transpiration ; Highly coupled non-linear problems ; Weak and strong coupling algorithms ; Partitioned procedures
Record created on 2007-12-13, modified on 2016-08-08