A variational multiscale sugbrid model including an explicit filtering is studied in the framework of an equal-order finite element formulation for solving compressible Navier–Stokes equations in entropy variables. The filtering is here achieved by considering embedded piecewise polynomials, whose implementation is made easier with the use of isoparametric and symmetric elements. A hybrid formulation combining a detached-eddy simulation near the walls is also proposed to be able to tackle realistic industrial configurations. The numerical developments are assessed with the Taylor–Green vortex, by comparison with a reference result provided by direct numerical simulation. Finally, new findings are reported with the direct noise computation of the LEISA-2 configuration, a three-element high-lift airfoil as part of the benchmark for airframe noise computation.
High-Order Variational Multiscale Model in Finite Elements Applied to the LEISA-2 Configuration
AIAA Journal ; 56 , 12 ; 5000-5012
2018-10-22
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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