An Algorithm for the Strong-Coupling of the Fluid-Structure Interaction Using a Staggered Approach. (20th June 2012)

• Record Type: Journal Article
• Authors: Pedro, Josè C.; Sibanda, P.
• Other Names: Homeier H. Academic Editor.; Lu C. Academic Editor.
• Is Part Of: ISRN applied mathematics. Volume 2012(2012)
• Publication Date: 2012-06-20
• Subjects: Mathematics -- Periodicals; Mathematics; Periodicals; Electronic journals; 510
• DOI: 10.5402/2012/391974
• Languages: English
• ISSNs: 2090-5564

Abstract

Abstract : We present a staggered approach for the solution of the piston fluid-structure problem in a time-dependent domain. The one-dimensional fluid flow is modelled using the nonlinear Euler equations. We investigate the time marching fluid-structure interaction and integrate the fluid and structure equations alternately using separate solvers. The Euler equations are written in moving mesh coordinates using the arbitrary Lagrangian-Eulerian (ALE) approach and discretised in space using the finite element method while the structure is integrated in time using an implicit finite difference Newmark-Wilson scheme. The influence of the time lag is studied by comparing two different structural predictors.