Detached-Eddy Simulation of a Wide-Body Commercial Aircraft in High-Lift Configuration

Numerical prediction of the aerodynamic properties of high-lift configurations has become an important topic for the computational fluid dynamics community in the last years. The present paper shows and discusses a numerical study of the DLR-F11 high-lift configuration that was used as a model refer...

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Veröffentlicht in:Journal of aircraft 2015-07, Vol.52 (4), p.1112-1121
Hauptverfasser: Escobar, Jaime A, Suarez, Camilo A, Silva, Carlos, López, Omar D, Velandia, Juan S, Lara, Carlos A
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Sprache:eng
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Zusammenfassung:Numerical prediction of the aerodynamic properties of high-lift configurations has become an important topic for the computational fluid dynamics community in the last years. The present paper shows and discusses a numerical study of the DLR-F11 high-lift configuration that was used as a model reference in the Second High-Lift Prediction Workshop, organized by the AIAA in 2013. Case 1 of the workshop was simulated with the commercial software ANSYS Fluent v14.5, using the Spalart–Allmaras (fully turbulent Reynolds-averaged Navier–Stokes) model. Numerical results showed good agreement for angles of attack lower than 18 deg; however, above this value, simulations were not accurate enough near to CL max. To study the influence of the turbulence model in the dynamics of the flow and the numerical prediction of the aerodynamic properties near to CL max, the original grids were adapted and a hybrid Reynolds-averaged Navier–Stokes/large-eddy simulation model (detached-eddy simulation based on Spalart–Allmaras) was used. Numerical results for the detached-eddy simulation showed a small change in the prediction of the aerodynamic properties near to CL max, as well as improved vorticity resolution in the wake.
ISSN:0021-8669
1533-3868
DOI:10.2514/1.C033164