Methods for simulation-based analysis of fluid-structure interaction.

Barone, Matthew Franklin ; Payne, Jeffrey L.

Sandia National Laboratories

关键词: Navier-Stokes Equations;    Fluid Mechanics;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Structural Dynamics.;    Computerized Simulation;   

DOI  :  10.2172/875605
RP-ID  :  SAND2005-6573
RP-ID  :  AC04-94AL85000
RP-ID  :  875605

美国|英语

来源: UNT Digital Library

【 摘 要 】

Methods for analysis of fluid-structure interaction using high fidelity simulations are critically reviewed. First, a literature review of modern numerical techniques for simulation of aeroelastic phenomena is presented. The review focuses on methods contained within the arbitrary Lagrangian-Eulerian (ALE) framework for coupling computational fluid dynamics codes to computational structural mechanics codes. The review treats mesh movement algorithms, the role of the geometric conservation law, time advancement schemes, wetted surface interface strategies, and some representative applications. The complexity and computational expense of coupled Navier-Stokes/structural dynamics simulations points to the need for reduced order modeling to facilitate parametric analysis. The proper orthogonal decomposition (POD)/Galerkin projection approach for building a reduced order model (ROM) is presented, along with ideas for extension of the methodology to allow construction of ROMs based on data generated from ALE simulations.