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
Citations
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Journal ArticleDOI
Development of a One-Equation Transition/Turbulence Model
TL;DR: In this article, a unified one-equation model for the prediction of transitional and turbulent flows is presented, which combines the Spalart-Allmaras model and the eddy viscosity model.
Journal ArticleDOI
Prediction of turbulent separation over a backward-facing smooth ramp
B. Wasistho,Kyle D. Squires +1 more
TL;DR: In this paper, large eddy simulation (LES) and Reynolds-averaged Navier-Stokes (RANS) calculations have been performed of the turbulent flow over a smoothly contoured ramp.
Journal ArticleDOI
Large eddy simulation based studies of jet–cavity interactions in a supersonic flow
TL;DR: In this paper, a cavity flameholder with an upstream injected jet in a Ma 2.52 supersonic flow was investigated numerically, and it was found that the jet-cavity interactions remarkably enhanced the mass exchange between the fluids in and out of the cavity, resulting in reduced residence time of the cavities fluids.
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Control of the antisymmetric mode (m = 1) for high Reynolds axisymmetric turbulent separating/reattaching flows
Pierre-Élie Weiss,Sébastien Deck +1 more
TL;DR: In this article, the influence of two controlled devices acting in different regions of the separated flow, i.e., in the shear layer or in the recirculation area, is analyzed numerically at a high subsonic regime using Zonal Detached Eddy Simulation (ZDES).
Journal ArticleDOI
Methodology of a combined ground based testing and numerical modelling analysis of supersonic combustion flow paths
TL;DR: In this paper, a combined ground-based testing and numerical modeling analysis of supersonic combustion flow paths was established based on free jet testing of complete SU-scramjet configurations consisting of intake, combustor and nozzle in the High Enthalpy Shock Tunnel Gottingen (HEG) of the German Aerospace Center (DLR).
References
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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.