A review of numerical fluids/structures interface methods for computations using high-fidelity equations

Domain decomposition approaches require efficient interface techniques when fluids and structures are solved in independent computational domains for aerospace applications. Fluid/structure interfacing techniques for solutions from equations based on low-fidelity approaches that are in the linear domain are well advanced and are incorporated in production codes NASTRAN and ASTROS. However, for computations involving high-fidelity equations such as the Navier–Stokes for fluids and finite elements for structures, interface approaches are still under development. This paper provides a technical overview of methods for interfacing flow solutions from the Euler/Navier–Stokes methods with structural solutions using modal/finite-element methods. Validity of the methods is supported by previously presented results.