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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High-Fidelity Hydrodynamic Shape Optimization of a 3-D Hydrofoil
TL;DR: In this paper, a CFD-based hydrodynamic shape optimization tool was developed for a tapered NACA 0009 hydrofoil that considers cavitation and a wide range of operating conditions, where an efficient gradient-based optimizer and the adjoint method were used to carry out the optimization.
Journal ArticleDOI
Evaluation of Turbulence Models Using Direct Numerical and Large-Eddy Simulation Data
TL;DR: In this paper, the performance of some commonly used eddy-viscosity turbulence models has been evaluated using direct numerical simulation (DNS) and large-eddy simulation (LES) data.
Journal ArticleDOI
Harmonic Solution of Unsteady Flow Around Blades with Separation
TL;DR: In this article, an alternative harmonic formulation is adopted for modeling harmonic disturbances with an intention to harness nonlinearity as a means of stabilization while achieving the same computational efficiency as a conventional time-linearized model.
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Coherent structure dynamics in turbulent flows past in-stream structures: some insights gained via numerical simulation.
Joongcheol Paik,Joongcheol Paik,Joongcheol Paik,Cristian Escauriaza,Cristian Escauriaza,Cristian Escauriaza,Fotis Sotiropoulos,Fotis Sotiropoulos,Fotis Sotiropoulos +8 more
TL;DR: In this paper, the authors review recent progress toward the development of coherent-structure-resolving (CSR) computational fluid dynamics techniques, based on hybrid URANS/LES modeling strategies, for simulating turbulent flows in open-channels with hydraulic structures.
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Analysis of Jet-Noise-Reduction Concepts by Large-Eddy Simulation
TL;DR: The available CFD/CAA numerical and physical models, properly combined, are capable of predicting the noise of rather complex jets with affordable computational resources, and already today can be helpful in the rapid low-cost analysis of noise-reduction concepts.
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.