A coupled MMALE-FE method for solving 3D fluid-solid interaction problems with multi-material flow
ISSN: 0264-4401
Article publication date: 19 July 2019
Issue publication date: 15 October 2019
Abstract
Purpose
The simulation of the fluid–solid interaction (FSI) problem is important for both academic studies and engineering applications. However, the numerical approach for simulating the FSI problems is a great challenge owing to the large discrepancy of material properties and inconsistent description of grid motion between the fluid and solid domains. The difficulties will be further increased if there are multiple materials in the fluid region. In these complicated applications, interface reconstruction, multi-material advection and FSI must be all taken into account. This paper aims to present an effective integrated work of multi-material arbitrary Lagrangian Eulerian (MMALE) method, finite element (FE) method and the continuum analogy method to simulate the complex FSI problems involving multi-material flow. The coupled method is used to simulate the three-dimensional CONT test and the blast-plate interaction. The numerical results show good agreement with the benchmark and the experiment data, which indicates that the presented method is effective for solving the complicated FSI problems.
Design/methodology/approach
MMALE and FE methods are used to simulate fluid and solid regions, respectively. The interfacial nodes of fluid and solid are required to be coincident in the whole simulation so the interacted force can be easily and accurately calculated. To this end, the continuum analogy method is used in the rezoning phase.
Findings
The coupled method is used to simulate the three-dimensional CONT test and the blast-plate interaction. The numerical results show good agreement with the benchmark and the experiment data, which indicates that the presented method is effective for solving the complicated FSI problems.
Originality/value
To the best of the authors’ knowledge, this is the first time that the ALE method, moment of fluid interface reconstruction method, continuum analogy method and the FE method are combined to solve complicated practical problems.
Keywords
Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 11390363).
Citation
Chen, X. and Zhang, X. (2019), "A coupled MMALE-FE method for solving 3D fluid-solid interaction problems with multi-material flow", Engineering Computations, Vol. 36 No. 8, pp. 2766-2786. https://doi.org/10.1108/EC-10-2018-0486
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited