Output-based high-order adaptive results are presented for several benchmark two-dimensional turbulent-flow simulations. The discretization is a high-order discontinuous Galerkin finite element method, and the equations solved are compressible Navier–Stokes, Reynolds-averaged with a modified version of the Spalart–Allmaras one-equation model. Mesh refinement requirements are studied through automated output-based adaptation in which a discrete adjoint solution associated with an output (e.g., the drag coefficient) weights a fine-space residual and automatically selects the elements that need more resolution. The roles of high-order and mesh anisotropy are also investigated. Finally, differences are investigated between two mesh refinement strategies: hanging-node refinement of structured meshes versus metric-based remeshing of unstructured triangles.
High-Order Output-Based Adaptive Simulations of Turbulent Flow in Two Dimensions
AIAA Journal ; 54 , 9 ; 2611-2625
2016-09-01
Article (Journal)
Electronic Resource
English
High-Order Output-Based Adaptive Simulations of Turbulent Flow in Two Dimensions
Online Contents | 2016
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|British Library Conference Proceedings | 2016
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