Abstract
Numerical solving of fluid-structure interaction (FSI) problems are of importance in various scientific fields. In particular, the establishment of stable numerical scheme is needed in order to analyze the details of flow phenomena. In the present paper, we propose a weak-coupling method for FSI problem: for the large deformable object the rigorous equations of motion are descritized with finite volume method; in the flow computation, the large deformable object is reproduced via immersed boundary method. To demonstrate the performance of proposed scheme, the 3D FSI problem for a large deformable object are solved. The results indicate that the computation is stably conducted using our method,in spite of the occurence of fairly large deformation of the object.
