|Fluid-Structure Interaction Simulations Using Parallel Computers|
|Rainald Lohner - School of Computational Sciences and Informatics, George Mason University|
Joseph Baum - Applied Physics Operations, Science Applications International Corp.
Charles Charman - General Atomics
Daniele Pelessone - Engineering Software System Solutions
A methodology to simulate large-scale fluid-structure interaction problems on parallel machines has been developed. Particular emphasis was placed on shock-structure interaction problems. For the fluid, a high-resolution FEM-FCT solver based on unstructured grids is used. The surface motion is handled either by moving, body fitted grids, or via surface embedding. For the structure, a Lagrangean large-deformation finite element code is employed. The coupled system is solved using a loose coupling algorithm, with position and velocity interpolation and force projection. Several examples, run on parallel machines, demonstrate the range of applicability of the proposed methodology.