ENACT - Efficient non-linear Aeroelasticity Computations under Uncertainty

未来飞行器的新解决方案可能涉及结构和空气动力学之间的复杂相互作用。这种相互作用可能是高度非线性的，对系统和模型参数非常敏感，这就需要开发能够量化不确定性(结构和空气动力学)对跨音速气动弹性的影响和影响的方法。该项目将通过实施基于新的、高效的计算技术的分析框架来解决阻碍在不确定条件下实际模拟跨音速非线性气动弹性不稳定性的技术和科学挑战。该项目旨在通过使不确定性量化(UQ)成为CFD谐和平衡框架的组成部分来实现高保真气动弹性分析的阶段性变化，这将通过开发适用于非定常CFD和非线性气动弹性不稳定性的UQ技术来评估不确定性和认知性。

Novel solutions for future air vehicles are likely to involve complex interactions between structures and aerodynamics. Such interactions can be highly non-linear and sensitive to system and model parameters, which require the development of methods capable of quantifying the effects and implications of uncertainty (structural and aerodynamic) on transonic aeroelasticity. This project will address the technical and scientific challenges preventing the practical simulation of transonic non-linear aeroelastic instabilities under uncertainty by implementing an analysis framework based on novel, highly efficient computational techniques. The project aims to create a step change in high-fidelity aeroelastic analysis by making uncertainty quantification (UQ) an integral part of a CFD Harmonic Balance framework, which will enable the assessment of aleatory and epistemic uncertainty through the development of suitable UQ techniques for unsteady CFD and non-linear aeroelastic instabilities.