Abstract
The fluid-shell coupled overlaying ALE mesh method proposed by the authors is developed by introducing the force distribution technique of the immersed boundary (IB) and immersed finite element (IFE) methods to couple interface-tracking local mesh and non-interface-fitted global mesh without projections of fluid velocities and pressures. The proposed method can be understood as an improved version of not only the single ALE mesh method but also the IB and IFE methods that are different fluid-structure simulation technique. Computational performance of these methods is compared in a two-dimensional bench mark problem with a large deformation, and it is shown that the proposed method has superior performances to other methods from several aspects. An essential factor to the stable analysis by non-interface-fitted approaches are also investigated in the paper.
