Fully decoupled time-marching schemes for incompressible fluid/thin-walled structure interaction
Fully decoupled time-marching schemes for incompressible fluid/thin-walled structure interaction
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DOI：
10.1016/j.jcp.2015.05.009
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发表时间：
2015-09-15
影响因子：
4.1
通讯作者：
Vidrascu, Marina
中科院分区：
文献类型：
--
作者：
Fernandez, Miguel A.;Landajuela, Mikel;Vidrascu, Marina
本文介绍了一类用于不可压缩流体与薄壁弹性或粘弹性结构耦合的完全解耦的时间推进格式(速度-压力-位移分裂)。时间分裂结合了流体中的投影方法和界面耦合的特定Robin-Neumann处理。对其中一些方案建立了保证无条件稳定性的先验能量估计。通过深入的数值研究，证明了所提出的方法的精度和性能。(C)2015 Elsevier Inc.保留所有权利。
In this paper we introduce a class of fully decoupled time-marching schemes (velocity-pressure-displacement splitting) for the coupling of an incompressible fluid with a thin-walled elastic or viscoelastic structure. The time splitting combines a projection method in the fluid with a specific Robin-Neumann treatment of the interface coupling. A priori energy estimates guaranteeing unconditional stability are established for some of the schemes. The accuracy and performance of the methods proposed are illustrated by a thorough numerical study. (C) 2015 Elsevier Inc. All rights reserved.