Results 61 to 70 of about 377,594 (201)
, 2007 A one-dimensional version of the second-order transition model based on the sheared flow amplification by Reynolds stress and turbulence supression by shearing is presented.
B. A. Carreras, Diamond P. H., I. Calvo
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Supersonic boundary-layer flow turbulence modeling [PDF]
Baldwin-Lomax and kappa-epsilon turbulence models were modified for use in Navier-Stokes numerical computations of Mach 2.9 supersonic turbulent boundary layer flows along compression ramps.
Wang, Chi-Rong
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Turbulent Flow and Heat Transfer in Circular Couette Flows in Concentric Annulus
International Journal of Rotating Machinery, 1998 A numerical study is performed to investigate heat transfer and fluid flow in the hydrodynamically and thermally fully-developed region of an annulus, consisting of a heated rotating inner cylinder and a stationary insulated outer cylinder.
Shuichi Torii, Wen-Jei Yang
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Development of turbulence models for shear flows by a double expansion technique [PDF]
Turbulence models are developed by supplementing the renormalization group (RNG) approach of Yakhot and Orszag with scale expansions for the Reynolds stress and production of dissipation terms. The additional expansion parameter (eta) is the ratio of the
Gatski, T. B. +4 more
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CFD Simulation of Air Cyclone Separator
Tikrit Journal of Engineering Sciences, 2016 A computational fluid dynamics model was developed for air cyclone separator in order to predict the flow pattern inside the cyclone using an Eulerian approach, three dimensions Reynolds-Average Navier-Stokes equations, closed via the Reynolds Stress ...
Nuha W. Nema +2 more
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A study of Reynolds-stress closure model [PDF]
A hybrid model of the Reynolds stress closure was developed. This model was tested for various sizes of step flow, and the computed Reynolds stress behavior was compared with experimental data. The third order closure model was reviewed.
Amano, R. S., Goel, P.
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Numerical simulation of 3D backward facing step flows at various Reynolds numbers
EPJ Web of Conferences, 2015 The work deals with the numerical simulation of 3D turbulent flow over backward facing step in a narrow channel. The mathematical model is based on the RANS equations with an explicit algebraic Reynolds stress model (EARSM).
Louda Petr +2 more
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Assessment of turbulence model predictions for a centrifugal compressor simulation
Journal of the Global Power and Propulsion Society, 2017 Steady-state computational fluid dynamics (CFD) simulations are an essential tool in the design process of centrifugal compressors. Whilst global parameters, such as pressure ratio and efficiency, can be predicted with reasonable accuracy, the accurate ...
Lee Gibson +3 more
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A Realizable Reynolds Stress Algebraic Equation Model [PDF]
The invariance theory in continuum mechanics is applied to analyze Reynolds stresses in high Reynolds number turbulent flows. The analysis leads to a turbulent constitutive relation that relates the Reynolds stresses to the mean velocity gradients in a ...
Lumley, John L. +2 more
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Computational analysis of shock-induced flow through stationary particle clouds
, 2019 We investigate the shock-induced flow through random particle arrays using particle-resolved Large Eddy Simulations for different incident shock wave Mach numbers, particle volume fractions and particle sizes.
Omang, Marianne Gjestvold +3 more
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