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The Anisotropic Hybrid k-$$\omega $$ SST/Stochastic Turbulence Model
, 2020 This chapter focuses on a brief summary of the mathematical formulation of the anisotropic hybrid k-\(\omega \) Shear-Stress Transport (SST)/Stochastic Turbulence Model (STM) related to a new hypothesis on the Reynolds stress tensor (2.41) proposed in the first volume of this book [17]. The mathematical formulation of the anisotropic hybrid k-\(\omega \
László Könözsy
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A Three Equation Curvature and Rotation Sensitive Variant of the SST K-Omega Turbulence Model
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2010 To date, eddy viscosity models are the most accepted and widely used RANS-based turbulence closures, attributable to their computational efficiency and relative robustness. One notable shortcoming of these models is their insensitivity to system rotation and streamline curvature.
Tej Prasad Dhakal, D. Keith Walters
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Volume 3B: Combustion, Fuels, and Emissions, 2023 For swirl-stabilized gas turbine combustors, turbulence modelling is generally undertaken using Scale-Resolved Simulations (SRS) methods such as Large Eddy Simulations (LES).
George Klavaris +5 more
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20th AIAA Computational Fluid Dynamics Conference, 2011 The shear stress transport (SST) turbulence model of Menter was proposed to predict an accurate separated flow in the adverse pressure gradient flows, but it has sometimes failed to predict the flowfield with strong shock wave/turbulent boundary-layer interaction. In an effort to improve the original k-ω model, Wilcox has recently proposed a modified k-
Tan Jie, Jin Jie
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Some improvements in Menter's k-omega SST turbulence model
29th AIAA, Fluid Dynamics Conference, 1998 Antti Hellsten
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Formulation of the k-omega Turbulence Model Revisited
45th AIAA Aerospace Sciences Meeting and Exhibit, 2007This paper presents a reformulated version of the author'sk-ω model of turbulence. Revisions include the addition of just one new closure coefficient and an adjustment to the dependence of eddy viscosity on turbulence properties. The result is a significantly improved model that applies to both boundary layers and free shear flows and that has very ...
D. Wilcox
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Staggered finite volume scheme for solving cascade flow with a k-omega turbulence model
AIAA Journal, 1994A k-ω turbulence model by Wilcox is applied to cascade flow calculations. A staggered finite volume scheme is proposed to solve the compressible Reynolds-averaged Navier-Stokes equations and the k-ω equations are solved on staggered control volumes with k and ω defined at the cell vertices of the original grid.
Liu, Fieng, Zheng, Xiaoqing
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Modification to the k-Omega Turbulence Model for Vortically Dominated Flows
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2011 [Abstract] Vortically dominated flows (wingtip, vortex-fin interaction, jet into cross-flow) have traditionally been difficult to accurately model using two-equation RANS (Reynolds Averaged NavierStokes) CFD tools. However RANS models provide the “workhorse” for many aerodynamic simulations.
Lawrence Dechant
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Application of the k-omega turbulence model to quasi-three-dimensional turbomachinary flows
Journal of Propulsion and Power, 1996 Many computational fluid dynamics codes for turbomachinery use the Baldwin-Lomax (B-L) turbulence model. It is easy to implement in two dimensions and works well for predicting overall turbomachinery performance. However, it is awkward to implement in three dimensions, often has difficulty finding the length scale, has a crude transition model, and ...
Rodrick V. Chima
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Extension of the k-omega-SST turbulence model for flows over rough surfaces
22nd Atmospheric Flight Mechanics Conference, 1997 This paper introduces an improved computational method for predicting the behaviour of turbulent flows over rough surfaces. The method is based on the numerical solution of the Navier-Stokes equations employing the k - w-SST turbulence model. An existing surface-roughness method, developed for the traditional k — w models, was found to not work well ...
Antti Hellsten +3 more
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