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首页> 外文期刊>Computer Methods in Applied Mechanics and Engineering >Multiphysics simulation of flow-induced vibrations and aeroelasticity on parallel computing platforms
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Multiphysics simulation of flow-induced vibrations and aeroelasticity on parallel computing platforms

机译：并行计算平台上流致振动和气动弹性的多物理场仿真

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This article describes the application of multiphysics simulation on parallel computing platforms to model aeroelastic instabilities and flow-induced vibrations. Multiphysics simulation is based on a single computational framework for the modeling of multiple interacting physical phenomena. Within the multiphysics framework, the finite element treatment of fluids is based on the Galerkin-Least--Squares (GLS) method with discontinuity capturing operators. The arbitrary-Lagrangian--Eulerian (ALE) method is utilized to account for deformable fluid domains. The finite element treatment of solids and structures is based on a three-field variational principle. Fully-coupled interaction constraints are enforced using the augmented-Lagrangian method. The multiphysics architecture lends itself naturally to high-performance parallel computing. Several applications are presented. The importance of capturing the nonlinear effects and accounting for mesh-movement is highlighted and the scalability of the software is illustrated.
机译：本文介绍了多物理场仿真在并行计算平台上的应用，以对气动弹性不稳定性和流动引起的振动进行建模。多物理场仿真基于单个计算框架，用于对多个相互作用的物理现象进行建模。在多物理场框架内，流体的有限元处理基于具有不连续性捕获算子的Galerkin-最小二乘（GLS）方法。任意拉格朗日欧拉（ALE）方法用于解释可变形流体域。实体和结构的有限元处理基于三场变分原理。使用增强拉格朗日方法强制执行完全耦合的交互约束。多物理场体系结构自然适合于高性能并行计算。介绍了几种应用。强调了捕捉非线性效应和考虑网格运动的重要性，并说明了软件的可扩展性。

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