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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Fourth-Order Runge---Kutta Schemes for Fluid Mechanics Applications
TL;DR: Multiple high-order time-integration schemes are used to solve stiff test problems related to the Navier–Stokes (NS) equations to determine whether high- order schemes can displace currently used second-order schemes on stiff NS and Reynolds averaged NS (RANS) problems, for a meaningful portion of the work-precision spectrum.
Journal ArticleDOI
The shifted boundary method for embedded domain computations. Part II: Linear advection-diffusion and incompressible Navier-Stokes equations
Alex Main,Guglielmo Scovazzi +1 more
TL;DR: A new embedded finite element method for the linear advection–diffusion equation and the laminar and turbulent incompressible Navier–Stokes equations, based on the idea of shifting the location where boundary conditions are applied from the true to a surrogate boundary.
Proceedings ArticleDOI
Application of Parallel Adjoint-Based Error Estimation and Anisotropic Grid Adaptation for Three-Dimensional Aerospace Configurations
TL;DR: In this article, the authors demonstrate the extension of error estimation and adaptation methods to parallel computations enabling larger, more realistic aerospace applications and the quantification of discretization errors for complex 3D solutions.
Journal ArticleDOI
Hypersonic Flow Predictions Using Linear and Nonlinear Turbulence Closures
TL;DR: In this paper, two-dimensional hypersonic flow cases are computed using linear one-equation closures and a nonlinear twoequation model, where the anisotropy tensor is modeled as a cubic function of mean strain and vorticity tensors.
Journal ArticleDOI
Aerodynamics of two-dimensional flapping wings in tandem configuration
TL;DR: In this article, the effects of phase angle and center-to-center distance (L) between the front wing and the rear wing on the aerodynamic force generation at a Reynolds number of 5000 were investigated.
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.
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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.