Results 51 to 60 of about 377,594 (201)
Assessment of Turbulence Models in a Hypersonic Cold-Wall Turbulent Boundary Layer
Fluids, 2019 In this study, the ability of standard one- or two-equation turbulence models to predict mean and turbulence profiles, the Reynolds stress, and the turbulent heat flux in hypersonic cold-wall boundary-layer applications is investigated.
Junji Huang +2 more
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Improved Delayed Detached Eddy Simulation with Reynolds-stress background modelling
Computers & Fluids, 2023 A novel variant of Improved Delayed Detached-Eddy Simulation based on a differential Reynolds-stress background model is presented. The approach aims to combine the advantages of anisotropy-resolving Reynolds-stress closures in the modelled RANS regions with consistent LES and wall-modelled LES behaviour in the resolved flow regions. In computations of
Marius Herr, Rolf Radespiel, Axel Probst
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Journal of Marine Science and EngineeringThe k-omega SST turbulence model is extensively employed in Reynolds-averaged Navier–Stokes (RANS)-based Computational Fluid Dynamics (CFD) calculations.
Satoshi Matsuda, Tokihiro Katsui
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Reynolds Stress Transport Modelling
, 2011 The Reynolds–averaged Navier–Stokes (RANS) approach is the most commonly employed approach in CFD for industrial applications, and is likely to continue to be so for the foreseeable future. The need to handle complex wall-bounded flows, and the need to evaluate large numbers of design variations usually prohibits high-fidelity approaches such as direct
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Reduced model for H-mode sustainment in unfavorable drift configuration in ASDEX Upgrade
Nuclear FusionA recently developed reduced model of H-mode sustainment based on interchange-drift-Alfvén turbulence description in the vicinity of the separatrix matching experimental observations in ASDEX Upgrade has been extended to experiments with the unfavorable $
O. Grover +8 more
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Constrained large-eddy simulation of laminar-turbulent transition in compressible channel flows
Advances in Aerodynamics, 2023 An improved approach for constrained large-eddy simulations (CLES) of wall-bounded compressible transitional flows is proposed by introducing an intermittency factor.
Sanmu Chen +3 more
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SIMULATING BREAKING WAVES WITH THE REYNOLDS STRESS TURBULENCE MODEL
Coastal Engineering Proceedings, 2020 The present study formally proved that Reynolds stress models (RSMs) are unconditionally stable in the potential flow regions. RSMs resolve all components of the Reynolds stress, eliminating e.g. the assumed isotropy of turbulence inherent within two-equation models.
Li, Yuzhu +3 more
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Reynolds Stresses and Hemolysis in Turbulent Flow Examined by Threshold Analysis
Fluids, 2016 Use of laminar flow-derived power law models to predict hemolysis with turbulence remains problematical. Flows in a Couette viscometer and a capillary tube have been simulated to investigate various combinations of Reynolds and/or viscous stresses power ...
Mesude Ozturk +2 more
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Energy Science & Engineering, 2020 The fluid flow characteristics in shale fractures are of great significance for shale gas reservoir evaluation and exploitation. In this study, artificial tension fractures in shale were used to simulate the hydraulic fractures formed by fracturing, and ...
Zhonghui Shen +5 more
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Assessment of higher order turbulence models for complex two- and three-dimensional flowfields [PDF]
A numerical method is presented to solve the three-dimensional Navier-Stokes equations in combination with a full Reynolds-stress turbulence model. Computations will be shown for three complex flowfields.
Menter, Florian R.
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