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Physics of Fluids, 2023
For developing a reliable data-driven Reynold stress tensor (RST) model, successful reconstruction of the mean velocity field based on high-fidelity information (i.e., direct numerical simulations or large-eddy simulations) is crucial and challenging, considering the ill-conditioning problem of Reynolds-averaged Navier–Stokes (RANS) equations.
Ali Amarloo +4 more
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For developing a reliable data-driven Reynold stress tensor (RST) model, successful reconstruction of the mean velocity field based on high-fidelity information (i.e., direct numerical simulations or large-eddy simulations) is crucial and challenging, considering the ill-conditioning problem of Reynolds-averaged Navier–Stokes (RANS) equations.
Ali Amarloo +4 more
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Modeling of the Reynolds Stress Transport Equation
AIAA Journal, 1997An empirical strategy for improving modeling of the energy dissipation rate e ij and the velocity-pressure gradient Π ij terms in the transport equations for the Reynolds stresses is proposed on the basis of available direct numerical simulations of the turbulent boundary layer and fully developed turbulent channel flow.
Djenidi, L., Antonia, R. A.
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Differential Reynolds-Stress Modeling for Aeronautics
AIAA Journal, 2015A comparison of two differential Reynolds-stress models for aeronautical flows is presented. The ω model herein combines the Speziale–Sarkar–Gatski pressure–strain model with the Launder–Reece–Rodi model toward the wall, where the length scale is supplied by Menter’s baseline ω equation.
Cécora, René-Daniel +3 more
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Reynolds-stress-transport modeling for compressible aerodynamics applications
AIAA Journal, 1999Progress is reported in the development of a nonlinear Reynolds-stress-transport model for compressible, turbulent flow. The focus is on a variation of a particular cublc model that does not require the usual topography-related parameters, such as normal-to-wall vectors.
P. Batten +3 more
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Reynolds stress model involving the mean spin tensor
Physical Review E, 2004In this work, we develop a Reynolds stress model along the line of the approach presented by Commun. Nonlinear Sci. Numer. Simul. 9, 543 (2004)]], aiming to assess the role and contribution of the mean spin tensor in turbulence modeling. Here, the constitutive functional for the Reynolds stress depends on the mean spin tensor as well as the mean ...
Yu-Ning, Huang, Hui-Yang, Ma
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Model functions of Reynolds stress models
The Physics of Fluids, 1988A Reynolds stress (Re-stress) model for the prediction of shear flows is presented. Special attention is paid to the determination of the model functions. First, the general modeling assumptions are discussed and the modeling of the equations is then described in detail. It is shown that by successive analysis of different types of flows a set of model
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Reynolds Stress Models for Shock-Turbulence Interaction
2019A systematic deficiency of current turbulence models which are based on the Reynolds-averaged Navier-Stokes equations (RANS) is their inability to correctly predict the interaction of turbulence with shocks. This is because RANS models do not account for the unsteady motion or fragmentation of the shock wave within the interaction zone.
Karl, Sebastian +2 more
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Reynolds-stress modelling of transonic afterbody flows
The Aeronautical Journal, 2001AbstractSeveral afterbody flows, involving shock-boundary-layer interaction, are used to evaluate recent developments in a realizable low-Reynolds-number, second-moment closure of turbulence. The model considered is a compressibility-adapted variant of the recent incompressible-flow form of Craft and Launder. This includes a tensorially cubic model for
M. A. Leschziner, P. Batten, T. J. Craft
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Dynamic Reynolds stress modeling of turbidity currents
Journal of Geophysical Research: Oceans, 1992A turbidity current is idealized as a time‐varying, one‐dimensional boundary layer flow. A full Reynolds stress model appears to give significantly better predictions than one‐ and two‐equation turbulence closures. Model verification is obtained from stationary downslope experimental flows.
Bård Brørs, Karl J. Eidsvik
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Reynolds Stress Modeling for Hypersonic Flows
2012Despite the enormous increase in computational capabilities and use of computational fluid dynamics as a design tool in the aircraft industry, the correct prediction of complex hypersonic turbulent flows involving shock wave boundary layer interaction (SWBLI) is still a challenge [1].
A. Bosco +4 more
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