High resolution adaptive framework for fast transient fluid-structure interaction with interfaces and structural failure Application to failing tanks under impact
Résumé
Fast transient phenomena involving multi-component flows with fluid-structure interaction have to be considered for liquid-filled structures subjected to failure under impact, because of the opening gaps through which the internal fluid flows. Numerical simulation with a generic adaptive computational framework based on combined indicators for fluid and structure improves the resolution in the representation of localized phenomena such as the cracks initiation and propagation in the structure, thus allowing for accurate prediction of fluid leakage through small gaps. The capabilities of the proposed methodology and the relative influence of its inner parameters are first analyzed with a parametric study on a simple yet representative test case, followed by a large scale comparison between simulations and complex experiments.
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