Results 251 to 260 of about 58,998 (325)
Analysis of Flow Field Characteristics in a Mechanical Defoaming Device. [PDF]
ACS OmegaLi S, Peng T, Xu S, Qiu Y, Huai Y.
europepmc +1 more source
ASME 2023 Gas Turbine India Conference, 2023 Abstract The paper outlines the CFD study carried out on the Highly Efficient Centrifugal Compressor (HECC) consisting of three blade rows which are an Impeller (main blade/splitter blade), a Diffuser (main/splitter vane) and a Deswirl.
Shivani Ranjan +3 more
semanticscholar +3 more sources
Influence of freestream values on k-omega turbulence model predictions
AIAA Journal, 1992 The Wilcox (1988, 1991) k-omega model for eddy-viscosity turbulence does not require damping functions in the viscous sublayer, and its equations are less stiff near the wall. It has been designed to predict the requisite wake length in equilibrium, adverse pressure-gradient boundary-layer flows.
Florian Menter
semanticscholar +3 more sources
Modification of k-$$\omega $$ turbulence model for ship resistance flow predictions
Journal of Ocean Engineering and Marine Energy, 2022 Takanori Hino +2 more
semanticscholar +4 more sources
International Journal for Numerical Methods in FluidsAbstractThe goal of this research is to propose a new modification of a non‐equilibrium effect in the turbulence model to better predict high‐speed turbulent flows. For that, the two local compressibility coefficients are included in the balance production/dissipation terms in a specific dissipation rate equation.
Altynshash Naimanova, Assel Beketaeva
semanticscholar +4 more sources
Staggered upwind method for solving Navier-Stokes and k-omega turbulence model equations
AIAA Journal, 1995 A staggered finite volume upwind algorithm for solving the compressible Navier-Stokes equations and the \(k-\omega\) turbulence model equations has been developed for computing cascade flows. Roe's upwind scheme is used to discretize the convective terms of the Navier-Stokes equations, and a third-order upwind scheme is used for the convective terms of
Zheng, Xiaoqing, Liu, Feng
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Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, 2022 Abstract This paper presents a complete and general machine-learning assisted optimization framework for the Generalized k-ω (GEKO) turbulence model based on experimental measurements. The optimization framework is applied to the use case of a turbocharger radial compressor for three different operating conditions including design and ...
Patrick Amstad +2 more
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The k- $$\omega $$ ω Shear-Stress Transport (SST) Turbulence Model
A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows, 2019 This chapter focuses on the mathematical formulations of the turbulent kinetic energy k and specific dissipation rate \(\omega \) Shear-Stress Transport (SST) turbulence model proposed by Menter [3, 4] to provide a closure model to the Boussinesq-type counterparts of the new hypothesis on the anisotropic Reynolds stress tensor discussed in Chap. 5. The
László Könözsy
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Fluid Dynamics Conference, 1995 The two-equation k 0 turbulence inodcl tluc to Wilcox has been iinpleinented in OVERFLOW Uiiii-1;iyer Navier-Stokes code. Both high and low Reynolds iiuinbcr forms of the model including compressibility corrections were considered. The near-wall consistency and accura~cy of the high and low Reynolds number fonns of the model for boundary layers has ...
M Kandula, D Wilcox
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