A High-Fidelity Coupling Framework for Aerothermoelastic Analysis and Adjoint-Based Gradient Evaluation

Smith, Liam J.; Halim, Lenard J.; Kennedy, Graeme J.; Smith, Marilyn J.

doi:10.2514/6.2021-0407

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…Although no studies on the accuracy of derived sensitivities are given, numerical examples indicate that even triple physics cases can be properly handled with continuous adjoints. On the discrete adjoint side, such a framework for simultaneous FSI and CHT has recently been developed (Smith et al 2021) which is especially designed for problems that require the coupling between a flow and a thermoelastic solver, e.g., for design aspects of hypersonic vehicles [see also the subsequent study in Kamali et al (2020)]. It builds on hand-coded discrete adjoints included in FUN3D (Biedron et al 2019), derived from the PDE solvers in a residual-based formulation.…”

Section: Introductionmentioning

confidence: 99%

Discrete adjoint methodology for general multiphysics problems

Burghardt

Gomes

Kattmann

et al. 2022

Struct Multidisc Optim

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This article presents a methodology whereby adjoint solutions for partitioned multiphysics problems can be computed efficiently, in a way that is completely independent of the underlying physical sub-problems, the associated numerical solution methods, and the number and type of couplings between them. By applying the reverse mode of algorithmic differentiation to each discipline, and by using a specialized recording strategy, diagonal and cross terms can be evaluated individually, thereby allowing different solution methods for the generic coupled problem (for example block-Jacobi or block-Gauss-Seidel). Based on an implementation in the open-source multiphysics simulation and design software SU2, we demonstrate how the same algorithm can be applied for shape sensitivity analysis on a heat exchanger (conjugate heat transfer), a deforming wing (fluid–structure interaction), and a cooled turbine blade where both effects are simultaneously taken into account.

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Section: Introductionmentioning

confidence: 99%