EVALUATION OF TURBULENCE MODELS FOR THE PREDICTION OF VORTEX INTERACTION OVER A FIGHTER AIRCRAFT
| Autor: | Michel Visonneau, Emmanuel GUILMINEAU, Ginevra Rubino |
|---|---|
| Přispěvatelé: | Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique (LHEEA), École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
vortex interaction
Hybrid RANS-LES model [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph] [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Physics::Fluid Dynamics [PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph] [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] RANS model [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [INFO.INFO-DC]Computer Science [cs]/Distributed Parallel and Cluster Computing [cs.DC] aircraft Physics::Atmospheric and Oceanic Physics Turbulence models [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA] |
| Zdroj: | Aerospace Europe Conference-AEC2020 Aerospace Europe Conference-AEC2020, Feb 2020, Bordeaux, France HAL |
| Popis: | International audience; In the present work, the numerical simulations of flow around a fighter aircraft at several angles of attack are performed with the flow solver ISIS-CFD which is an incompressible unsteady Reynoldsaveraged Navier-Stokes method. Three RANSbased turbulence models, as the isotropic k-SST, the non-linear anisotropic EARSM, and the Reynolds stress transport model SSGLRR- and one hybrid RANS-LES model, the DDES-SST, are used. All these turbulence models are based on k- model. Forces and moments as well as flow field data are compared with experimental measurements. For the RANS-based turbulence models, the results obtained with k- SST agree relatively well with the experimental data and it is the better approach for this class of turbulence models. However, the results obtained with DDES-SST are in better agreement with experiments. |
| Databáze: | OpenAIRE |
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