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首页> 外文会议>AIAA/ASCE/AHS/ASC structures, structural dynamics and materials conference;AIAA SciTech Forum >Development, Verification, and Validation of a Fluid-Structure Interaction Capability and Evaluation of Temporal Coupling Strategies
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Development, Verification, and Validation of a Fluid-Structure Interaction Capability and Evaluation of Temporal Coupling Strategies

机译：流体-结构相互作用能力的开发，验证和确认以及时间耦合策略的评估

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摘要

This paper presents a computational framework for performing fluid-structure interaction (FSI) simulations using the Loci/CHEM flow solver. The integrated computational fluid dynamics (CFD)-computational structural dynamics (CSD) framework is based on a parallel, implicit, unstructured flow solver for the Navier-Stokes equations and linear, implicit CSD code. The structural dynamic equations of motion are solved in a tightly coupled manner with the fluid governing equations. The force and displacement transfer are done using a conservative mapping procedure to ensure that the total force is transferred from the CFD wetted surface to the CSD wetted surface and that the conservation of work is satisfied. The mesh deformation strategy is based on an explicit inverse-distance weighted interpolation technique. Computations are performed to validate the methodology using several well-established test cases, including a two-dimensional airfoil model and the AGARD 445.6 wing. Results are included to examine the effect of the coupling strategy on temporal accuracy.
机译：本文介绍了一个使用Loci / CHEM流动求解器进行流固耦合（FSI）模拟的计算框架。集成的计算流体动力学（CFD）-计算结构动力学（CSD）框架基于Navier-Stokes方程和线性，隐式CSD代码的并行，隐式，非结构化流求解器。运动的结构动力学方程与流体控制方程以紧密耦合的方式求解。力和位移的传递采用保守的映射程序进行，以确保将总力从CFD润湿表面传递到CSD润湿表面，并确保工作量守恒。网格变形策略基于显式反距离加权插值技术。使用几个公认的测试用例进行了计算以验证方法，包括二维翼型模型和AGARD 445.6机翼。包括结果以检验耦合策略对时间准确性的影响。

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