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07 July 2014
Contribution to collective works (Parts of books)
Modelling of Fluid-Structure Interaction – Effects of Added Mass, Damping and Stiffness
Zilian, Andreas
2014In Irschik, Hans; Belyaev, Alexander K. (Eds.) Dynamics of Mechanical Systems with Variable Mass
Peer reviewed


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Keywords :
flow-induced vibrations; added coefficients modelling; computational FSI
Abstract :
[en] Fluid-flow around mechanical structures can sometimes lead to catastrophic failures. Improved modelling of fluid/structure interaction is required for safety and mechanical considerations. In this contribution, concepts for modelling the interaction of structures and fluids are presented. Starting from excitation mechanisms and associated classifications, various model depth approaches are compared. Among them, the use of added coefficients for quasi-steady problems is discussed. On the basis of potential flow theory, different approaches for determining fluid-induced additional mass are established and illustrated using an analytical example. Given the limitations of simplifying the engineering models, the second part of the paper provides a brief overview on computational methods for fluid-structure interaction and presents a monolithic modelling approach using space-time finite elements for discretisation of both fluid and structure. Applications from aero- and hydro-elasticity show the applicability of computational methods for problems involving flow-induced added mass, damping, and stiffness.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Zilian, Andreas  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Language :
Title :
Modelling of Fluid-Structure Interaction – Effects of Added Mass, Damping and Stiffness
Publication date :
September 2014
Main work title :
Dynamics of Mechanical Systems with Variable Mass
Editor :
Irschik, Hans
Belyaev, Alexander K.
Publisher :
Edition :
Collection name :
CISM International Centre for Mechanical Sciences
Pages :
Peer reviewed :
Peer reviewed
Focus Area :
Computational Sciences


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