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TECHNICAL PAPERS

Detached-Eddy Simulations and Reynolds-Averaged Navier-Stokes Simulations of Delta Wing Vortical Flowfields

[+] Author and Article Information
Scott Morton, James Forsythe, Anthony Mitchell, David Hajek

Department of Aeronautics, United States Air Force Academy USAF Academy, CO 80840-6400

J. Fluids Eng 124(4), 924-932 (Dec 04, 2002) (9 pages) doi:10.1115/1.1517570 History: Received March 20, 2002; Revised June 13, 2002; Online December 04, 2002
Copyright © 2002 by ASME
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References

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Figures

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Sketch of the experimental delta wing model of Onera
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Unstructured prism/tetrahedra grid with vortex core refinement, 2.45×106 cells
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Wave number convergence for a variation in time-step and subiteration using the SADES turbulence model and the baseline grid
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MATLAB power spectral density analysis of normal force for three grids
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Resolved turbulent kinetic energy along the vortex core scaled by the freestream velocity squared for four different grids
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MATLAB power spectral density analysis of the unsteady normal force for various turbulence models
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Instantaneous iso-surfaces of vorticity magnitude (left side) and total pressure (right side) for the Spalart-Allmaras turbulence model
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Instantaneous iso-surfaces of vorticity magnitude (left side) and total pressure (right side) for the Spalart-Allmaras turbulence model with approximate rotation corrections
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Instantaneous iso-surfaces of vorticity magnitude (left side) and total pressure (right side) for the Spalart-Allmaras detached eddy simulation turbulence model
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Instantaneous iso-surfaces of vorticity magnitude (left side) and total pressure (right side) for the shear stress transport detached eddy simulation turbulence model
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Resolved turbulent kinetic energy along the vortex core scaled by the freestream velocity squared for five different turbulence models
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Eddy-viscosity ratio along the vortex core for five different turbulence models
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Chord location of vortex breakdown as a function of angle of attack from the experiments of Mitchell et al. 24
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Streamwise velocity along the vortex core as a function of chord location
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Longitudinal plane of turbulent kinetic energy nondimensionalized by the freestream velocity squared through the core of the vortex for various turbulence models and from the experiments of Mitchell et al. [24] (* denotes baseline grid and nondimensional time-step of 0.005)
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Cross-planes of vorticity contours at two longitudinal stations from the experiments of Mitchell et al. [24] and SADES for two grids

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