Fixed-point fluid–structure interaction solvers with dynamic relaxation

摘要

A fixed-point fluid–structure interaction (FSI) solver with dynamic relaxation is revisited. New developments and insights gained in recent years motivated us to present an FSI solver with simplicity and robustness in a wide range of applications. Particular emphasis is placed on the calculation of the relaxation parameter by both Aitken’s D2{Delta^{2}} method and the method of steepest descent. These methods have shown to be crucial ingredients for efficient FSI simulations.