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High-fidelity computational simulation of nonlinear fluid-structure interactions

机译:非线性流固耦合的高保真计算仿真

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This paper reviews recent efforts to demonstrate a flexible computational framework for developing a high-fidelity, nonlinear aeroelastic solver. A subiteration strategy is adopted to achieve implicit coupling between the computational fluid dynamics and the structural codes. The specific solver presented couples a well-validated, full Navier-Stokes code with a nonlinear finite element plate model. The versatility of the approach is shown by applications to several types of fluid-structure interaction problems including: panel flutter, delta wing LCO and delta wing buffet. The computational results are analysed to elucidate the relevant physical phenomena involved in these complicated nonlinear fluid-structure interactions. This framework is extendible to other multidisciplinary problems where two or more disciplines may need to be coupled.
机译:本文回顾了最近的工作,以展示用于开发高保真,非线性气动弹性求解器的灵活计算框架。采用子迭代策略来实现计算流体动力学和结构代码之间的隐式耦合。提出的特定求解器将经过充分验证的完整Navier-Stokes代码与非线性有限元板模型耦合。该方法的多功能性通过在几种类型的流体-结构相互作用问题上的应用得到了证明,包括:面板颤振,三角翼LCO和三角翼自助餐。分析计算结果以阐明涉及这些复杂的非线性流体-结构相互作用的相关物理现象。该框架可扩展到可能需要将两个或多个学科结合起来的其他多学科问题。

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