Results 11 to 20 of about 377,594 (201)
Realizability of Reynolds-stress turbulence models [PDF]
The Physics of Fluids, 1977 It is shown that certain existing phenomenological models of turbulence in terms of differential equations for the Reynolds stresses Rαβ=〈u′α u′β〉 do not guarantee realizable solutions. The known realizability conditions are Rαβ⩾0 for α=β and Rαβ2⩾Rαα Rββ for α≠β. A stronger requirement is that the matrix Rαβ be positive semi-definite.
openaire +3 more sources
Las ecuaciones de Reynolds y la relación de clausura
Revista de Matemática: Teoría y Aplicaciones, 2009 We posed the problem to obtain the closure relation for the Reynolds equations. And like secondary target, to obtain analytical expressions for the Reynolds stress. Showing its jump of discontinuity like expression of the rupture of the symmetry; the one
José Roberto Mercado Escalante
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A Comparative CFD Study of Side-view Mirror and Side-view Camera Usages on a City Bus
International Journal of Automotive Science and Technology, 2020 In this study, the effects of classical side mirrors and side-view cameras on the aerodynamic drag coefficient of a city bus model were investigated with Computational Fluid Dynamics (CFD).
Duygu İpci̇
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Simulations of the Rotor-Stator-Cavity Flow in Liquid-Floating Rotor Micro Gyroscope
Micromachines, 2023 When rotating at a high speed in a microscale flow field in confined spaces, rotors are subject to a complex flow due to the joint effect of the centrifugal force, hindering of the stationary cavity and the scale effect.
Chunze Wang +5 more
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Solar differential rotation and meridional flow: The role of a subadiabatic tachocline for the Taylor-Proudman balance [PDF]
, 2005 We present a simple model for the solar differential rotation and meridional circulation based on a mean field parameterization of the Reynolds stresses that drive the differential rotation.
Kitchatinov L. L. +6 more
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On Application of EARSM Turbulence Model for Simulation of Flow Field behind Rack Station
EPJ Web of Conferences, 2013 This paper is interested in the mathematical modeling and approximation of the turbulent flow with strong anisotropy for the case of flow in a rack station. Turbulent models based on Boussinesq eddy viscosity assumption are traditionally employed for the
Fürst J. +4 more
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Energies, 2019 The Reynolds-averaged Navier−Stokes (RANS)-based generalized actuator disc method along with the Reynolds stress model (AD/RANS_RSM) is assessed for wind turbine wake simulation.
Linlin Tian +4 more
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Scientific Reports, 2021 With the aim for a low-aspect-ratio flying wing configuration, this study explores the influence of wall temperature gradient on the laminar and turbulent boundary layers of aircraft surface and determines the effect on the transition Reynolds number and
Peng Lin +6 more
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한국해양공학회지, 2018 This paper provides quantification of the effects of the turbulence model and grid refinement on the analysis of tip vortex flows by using the RANS(Reynolds averaged Navier-Stokes) method. Numerical simulations of the tip vortex flows of the NACA 662-415
Il-Ryong Park +4 more
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Computational study of a complex three-dimensional shock boundary-layer interaction [PDF]
, 2015 Shock boundary–layer interactions occur in many high-speed aerodynamic flows and they can have a notable impact on design considerations due to the aerodynamic and heat transfer effects.
Katzenberg, Joshua, MacManus, David G.
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