A 2D finite-element scheme for fluid-solid-acoustic interactions and its application to human phonation
A 2D finite-element scheme for fluid-solid-acoustic interactions and its application to human phonation
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DOI：
10.1016/j.cma.2009.06.009
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发表时间：
2009-01-01
影响因子：
7.2
通讯作者：
Doellinger, M.
中科院分区：
文献类型：
--
作者：
Link, G.;Kaltenbacher, M.;Doellinger, M.
我们提出了一个最近开发的方法建模的流固声相互作用问题。对于耦合三场问题的有效数值解，我们采用有限元法。的机械和声场近似由一个标准的Galerkin计划。一个基于残差的稳定化方法选择的流场。欧拉流体场与拉格朗日力学场的相互作用是基于拉格朗日-欧拉（ALE）方法，并在强意义上迭代耦合。固-声耦合是基于连续介质力学，流-声耦合是基于Lighthill的类比。我们的计划的新步骤进行了验证，通过验证的例子。最后，基于一个真实的模型，提出了一个人发声过程的流固声模拟。(C)2009 Elsevier B.V.保留所有权利。
We present a recently developed approach for the modeling of fluid-solid-acoustic interaction problems. For the efficient numerical solution of the coupled three-field problem we apply the finite-element method. The mechanical and the acoustic fields are approximated by a standard Galerkin scheme. A residual-based stabilization method is chosen for the fluid field. The interaction of the Eulerian fluid field with the Lagrangian mechanical field is based on the Arbitrary-Lagrangian-Eulerian (ALE) method and is iteratively coupled in a strong sense. The solid-acoustic interaction is based on continuum mechanics, and the fluid-acoustic coupling on Lighthill's analogy. The new steps of our scheme are verified through validation examples. Finally, a fluid-solid-acoustic simulation of the human phonation process is presented based on a realistic model. (C) 2009 Elsevier B.V. All rights reserved.