NUMERICAL SIMULATION OF FSI USING SPACE-TIME CE/SE SOLVER WITH MOVING MESH FOR FLUID DOMAIN

PROBLEM TO BE SOLVED: To provide a system and method for numerical simulation of FSI using a space-time CE/SE method with a fluid mesh coupled to a method of numerically simulating structural mechanics.SOLUTION: An FSI interface is determined based on fluid domain and structure definitions received in a computer system. Fluid forces acting on the FSI interface are initialized. Simulated structural behaviors are obtained using FEA in response to the received fluid forces at the FSI interface. Structural behaviors include nodal positions on the exterior boundary of a structure, which are used for updating the FSI interface of the space-time fluid mesh. Inner nodes of the fluid mesh are adjusted using a user-selected mesh adjustment strategy. Simulated fluid behaviors are obtained by updating fluid solutions using a CE/SE solver with the adjusted fluid mesh. The fluid forces are applied again to an FEA model to obtain simulated structural behaviors for the next solution cycle.