Results 31 to 40 of about 50 (50)

Computation of Transonic Diffuser Flows by a Lagged k-? Turbulence Model

Journal of Propulsion and Power, 2003
The lag model proposed by Olsen and Coakley is applied in combination with the baseline k‐! two-equation turbulence model to simulate the steady and unsteady transonic e ows in a diffuser. A fully implicit time-accurate multigrid algorithm is used to solve the unsteady Navier ‐Stokes equations and the coupled k‐! turbulence model equations.
Xiao, Q., Tsai, H.M., Liu, F.
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Application of a New Roughness Extension for k − ω Turbulence Models

2010
The roughness extension of Knopp, Eisfeld and Calvo (KEC) [4] for k – ω type turbulence models has been applied to the flow through rough pipes, over a flat plate and around the NACA 652-215 airfoil with a rough surface. The results are compared to predictions using the boundary condition originally devised by Wilcox [11] for rough surfaces, and to ...
Eisfeld, Bernhard, Knopp, Tobias, Calvo, Javier Bartholome   +2 more
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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 ...
openaire   +2 more sources

A new wall-law for adverse pressure gradient flows and modification of k-omega type RANS turbulence models

54th AIAA Aerospace Sciences Meeting, 2016
We present an attempt to improve the predictive accuracy of RANS turbulence models for low-speed flow separation on airfoils and wings near stall. It is based on a proposal for a new wall-law for the mean velocity in the inner layer of a turbulent boundary layer at adverse pressure gradient.
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Development and Application of Elliptic Blending Lag k-omega SST Standard and Wall-Distance-Free Turbulence Model

2020
In recent decades, Computational Fluid Dynamics (CFD) has become the most widely used technology to understand the fundamental complex fluid dynamics of turbulent flows as well as for modeling of turbulent flows in industrial applications. In industrial applications, the widely used methodology is to solve Reynolds-Average Navier-Stokes Equations (RANS)
openaire   +3 more sources

Simulations of heat transfer in complex internal flows using a k-omega turbulence model [PDF]

35th Aerospace Sciences Meeting and Exhibit, 1997
Erlendur Steinthorsson, Ali Ameri, D. Rigby, Erlendur Steinthorsson, Ali Ameri, D. Rigby   +5 more
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Some improvements in Menter's k-omega SST turbulence model [PDF]

29th AIAA, Fluid Dynamics Conference, 1998
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Numerical analysis of wind-induced vibration on 2D bluff bodies by using the k-omega turbulence model

2011
This paper concerns the influence of turbulence model adopted to numerically predict the aero-elastic phenomena in Fluid Structure Interaction (FSI) problems. After a detailed evaluation of the main suitable turbulence models available in Reynolds Average Navier Stokes (RANS), the two-equation k-turbulent model was identified as the ...
BRUSIANI, FEDERICO, CAZZOLI, GIULIO, DE MIRANDA, STEFANO, UBERTINI, FRANCESCO, P. Vaona   +4 more
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Modification of k-$$\omega $$ turbulence model for ship resistance flow predictions

Journal of Ocean Engineering and Marine Energy, 2022
Takanori Hino, Kengo Suzuki, Youhei Takagi   +2 more
openaire   +1 more source

Initial Validation of a Non-equilibrium Wilcox k - omega Turbulence Model in Subsonic and Transonic Flow Regimes [PDF]

52nd Aerospace Sciences Meeting, 2014
Thomas Lucas Kudla, Markus P. Rumpfkeil
openaire   +1 more source