Journal of Applied Mathematics
Volume 2011 (2011), Article ID 853560, 16 pages
Research Article

A Comparison of One-Way and Two-Way Coupling Methods for Numerical Analysis of Fluid-Structure Interactions

Department of Mechanical Engineering, Turbomachinery, Faculty of Engineering Sciences, University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany

Received 13 January 2011; Revised 28 July 2011; Accepted 2 August 2011

Academic Editor: Edward Swim

Copyright © 2011 Friedrich-Karl Benra et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The interaction between fluid and structure occurs in a wide range of engineering problems. The solution for such problems is based on the relations of continuum mechanics and is mostly solved with numerical methods. It is a computational challenge to solve such problems because of the complex geometries, intricate physics of fluids, and complicated fluid-structure interactions. The way in which the interaction between fluid and solid is described gives the largest opportunity for reducing the computational effort. One possibility for reducing the computational effort of fluid-structure simulations is the use of one-way coupled simulations. In this paper, different problems are investigated with one-way and two-way coupled methods. After an explanation of the solution strategy for both models, a closer look at the differences between these methods will be provided, and it will be shown under what conditions a one-way coupling solution gives plausible results.