论文信息 - Adjoint-based error correction applied to far-eld drag breakdown on structured grid

Adjoint-based error correction applied to far-eld drag breakdown on structured grid

An adjoint-based formulation is used to correct the aerodynamic parameters issued from the Euler equations for o ws around wings. This has been adapted from unstructured grids to a structured multi-block mesh and to the far-eld drag coecien t decomposition. The present study combines these both approaches to provide a more accurate CFD solution. The mesh can be adapted by minimizing the computed uncertainty error. The correction and the error estimation are calculated simultaneously from the adjoint eld. This method is applied on the two-dimensional subsonic and transonic o ws around a RAE2822 airfoil at Mach numbers 0:6 and 0:73 as well as on the three-dimensional ONERA M6 wing. The method is found ecien t compared with the results on a ner grid.

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