HEMLAB Algorithm Applied to the High-Lift Japan Aerospace Exploration Agency Standard Model

What is it about?

In this study, we used a in house-code called HEMLAB to analyze a special model of an aircraft wing called the high-lift JAXA Standard Model (HL-JSM). The goal was to make sure the computer code accurately simulates realistic airplane configurations. The code uses highly efficient data structure combined with anisotropic mesh adaptation library pyAMG from INRIA. The compressible Navier-Stokes equations and one equation negative Spalart-Allmaras turbulence model are solved in a monolitic manner using the restricted additive Schwarz preconditioner with the FGMRES(m) Krylov subspace algorithm within the PETSc library preceonditioned with incomplete LU factorization within each sub-domain. The initial test case is a two-dimensional high-lift system (L1T2/NHLP) and then applied it to the more complex three-dimensional high-lift JAXA Standard Model at high angles of attack. The numerical results with the anisotropic mesh refinement library pyAMG indicate significant improvements in numerical accuracy.

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