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- W2998411855 abstract "Aeroelastic problems are commonly evaluated using tools such as fluid-structure interaction (FSI) analysis. However, performing design studies or optimizations with FSI analysis is typically infeasible due to the associated computational cost. This work presents a new scheme for performing FSI analysis in which the final structure/fluid equilibrium configurations is of interest. This scheme, referred to as the uncoupled FSI method, is proposed to be significantly more efficient than the serial FSI coupling scheme especially in structural design studies and optimizations. In the uncoupled FSI method, instead of performing a single coupled fluid and structure analysis which increments in time until a chosen convergence criteria is met, many decoupled highly parallizable fluid and structure analyses with functionally defined displacement and pressure fields, respectively, are performed. Surrogate models for the results of these evaluations are developed and utilized to find the intersection of the physical solution fields, which is proposed in this work to be the FSI solution. Since solution sets of the structure and fluid domains are developed separately, the structure domain can be modified during a design study while fluid domain results are re-used, allowing for new FSI solutions to be found with significantly reduced computational expense. This new method is implemented in the design optimization of a shape memory alloy flow diverter that separates flow in a tunnel into two outlets with objectives of maximizing the flow through an outlet and minimizing the change in velocity required to fully divert flow from it." @default.
- W2998411855 created "2020-01-10" @default.
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- W2998411855 date "2020-01-05" @default.
- W2998411855 modified "2023-09-27" @default.
- W2998411855 title "An Uncoupled Method for Fluid-Structure Interaction Analysis with Application to Aerostructural Design" @default.
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- W2998411855 doi "https://doi.org/10.2514/6.2020-1635" @default.
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