Proceedings ArticleDOI
A one-equation turbulence model for aerodynamic flows
Philippe R. Spalart,S. Allmaras +1 more
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The article was published on 1992-01-06. It has received 8784 citations till now. The article focuses on the topics: K-epsilon turbulence model & K-omega turbulence model.read more
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Agglomeration multigrid for two-dimensional viscous flows
TL;DR: Agglomeration multigrid, which has been demonstrated as an efficient and automatic technique for the solution of the Euler equations on unstructured meshes, is extended to viscous turbulent flows and employed to solve the Reynolds-averaged Navier-Stokes equations for aerodynamic flows.
Journal ArticleDOI
Numerical prediction of shock induced oscillations over a 2D airfoil: Influence of turbulence modelling and test section walls
Mylène Thiery,Eric Coustols +1 more
TL;DR: In this paper, the capabilities of turbulence models are evaluated with two 2D URANS strategies, under free-stream or confined conditions, taking into account the adaptive upper and lower wind-tunnel walls.
Journal ArticleDOI
Uncertainty Quantification of Turbulence Model Closure Coefficients for Transonic Wall-Bounded Flows
John A. Schaefer,Serhat Hosder,Thomas K. West,Christopher L. Rumsey,Jan-Renee Carlson,William L. Kleb +5 more
TL;DR: In this paper, uncertainty quantification of turbulence model closure coefficients is performed for transonic flow over an axisymmetric bump and the RAE 2822 transonic airfoil.
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Numerical Investigation of Low-Aspect-Ratio Wings at Low Reynolds Numbers
Peter Cosyn,Jan Vierendeels +1 more
TL;DR: In this article, a numerical analysis is performed to study the flow around low-aspect-ratio (LAR) wings and more particularly the resulting lift-and-drag force.
Journal ArticleDOI
Automatic Transition Prediction in Hybrid Flow Solver, Part 1: Methodology and Sensitivities
TL;DR: In this article, a hybrid Reynolds-averaged Navier solver, a laminar boundary-layer code, and a fully automated local linear stability code were coupled to predict the laminARA¢Â�Â�turbulent transition due to Tollmien, Schlichting and======crossflow instabilities using the eN method based on the two-N-factor approach.
References
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Journal ArticleDOI
Reassessment of the scale-determining equation for advanced turbulence models
TL;DR: In this paper, a two-equation turbulence model is proposed that is shown to be quite accurate for attached boundary layers in adverse pressure gradient, compressible boundary layers, and free shear flows.
Journal ArticleDOI
Direct simulation of a turbulent boundary layer up to R sub theta = 1410
TL;DR: In this paper, the turbulent boundary layer on a flat plate, with zero pressure gradient, is simulated numerically at four stations between R sub theta = 225 and R sub tta = 1410.
Journal ArticleDOI
A mathematically simple turbulence closure model for attached and separated turbulent boundary layers
D. A. Johnson,L. S. King +1 more
TL;DR: In this article, a new turbulence closure model was proposed to treat two-dimensional, turbulent boundary layers with strong adverse pressure gradients and attendant separation by using an ordinary differential equation derived from the turbulent kinetic energy equation to describe the stream wise development of the maximum Reynolds shear stress in conjunction with an assumed eddy viscosity distribution.
Proceedings ArticleDOI
Validation of a multigrid method for the Reynolds averaged equations
Luigi Martinelli,Antony Jameson +1 more
Proceedings ArticleDOI
Artificial dissipation and central difference schemes for the Euler and Navier-Stokes equations
R. C. Swanson,Eli Turkel +1 more
TL;DR: In this paper, an artificial dissipation model, including boundary treatment, that is employed in many central difference schemes for solving the Euler and Navier-Stokes equations is discussed.