Full Eulerian methods constitute a family of numerical techniques used to simulate fluid-structure interaction problems. In a full Eulerian method, the velocity gradient tensor is used to compute deformation of solid. However, it is difficult to compute solid stress accurately near the interface, where the velocity between fluid and solid changes drastically. In this work, we propose an Eulerian formulation for fluid-structure interaction problems using Lagrangian marker particles with the Reference Map Technique to compute the deformation of solid accurately near material interfaces without using the gradient of the velocity. We illustrate and validate the proposed method through the presentation of various benchmark problems.

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Published on 11/07/21
Submitted on 11/07/21

Volume IS06 - Advances in Unfitted Mesh Methods for the Resolution of Computational Fluid Dynamics and Fluid-Structure Interaction Problems, 2021
Licence: CC BY-NC-SA license

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