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Partitioned solution to fluid-structure interaction problem in application to free-surface flows

机译:应用于自由表面流的流固耦合问题的分区解决方案

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In this work we discuss a way to compute the impact of free-surface flow on nonlinear structures. The approach chosen relies on a partitioned strategy that allows us to solve the strongly coupled fluid-structure interaction problem. It is then possible to re-use the existing and validated strategy for each sub-problem. The structure is formulated in a Lagrangian way and solved by the finite element method. The free-surface flow approach considers a Volume-Of-Fluid (VOF) strategy formulated in an Arbitrary Lagrangian-Eulerian (ALE) framework, and the finite volume is used to discrete and solve this problem. The software coupling is ensured in an efficient way using the Communication Template Library (CTL). Numerical examples presented herein concern the 2D validation case but also 3D problems with a large number of equations to be solved.
机译:在这项工作中,我们讨论了一种计算自由表面流对非线性结构影响的方法。选择的方法依赖于分区策略,该策略使我们能够解决强耦合流固耦合问题。然后可以针对每个子问题重新使用现有的经过验证的策略。该结构以拉格朗日方式表示,并通过有限元法求解。自由表面流动方法考虑了在任意拉格朗日-欧拉(ALE)框架中制定的流体体积(VOF)策略,并且有限体积用于离散和解决此问题。使用通信模板库(CTL)可以有效地确保软件耦合。本文介绍的数值示例涉及2D验证情况,但也涉及要解决的大量方程式的3D问题。

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