eddy viscosity model

eddy viscosity model

[′ed·ē vi′skäs·əd·ē ‚mäd·əl]
(fluid mechanics)
A model of the Reynolds stresses in turbulent flow which is based on the idea that turbulent mixing, analogous to molecular mixing, is governed by an effective viscosity (the eddy viscosity) which is not a property of the fluid but a consequence of the local state of turbulence.
References in periodicals archive ?
Taking consideration of local eddy-viscosity and near wall behaviours, the wall-adapting local eddy viscosity model is used.
Transient Simulation Research on Automobile Aerodynamic Lift Based on LBM Method
Anew k - [member of] eddy viscosity model for high reynolds number turbulent flows," Computers & Fluids 24(3):227-238, 1995, doi:http://dx.
Turbulence Models and Model Closure Coefficients Sensitivity of NASCAR Racecar RANS CFD Aerodynamic Predictions
Classical turbulence models based on the Reynolds decomposition (RANS) with an eddy viscosity model lead to a calculated turbulent viscosity up to a hundred times higher than that suitable for resolving turbulent structures important for detailed in-cylinder flow analyses [6].
Analysis of cycle-to-cycle variations of the mixing process in a direct injection spark ignition engine using scale-resolving simulations
A dynamic subgrid-scale eddy viscosity model," Physics of Fluids A3, 1760 (1991), doi:10.
Aerodynamics of an unloaded timber truck - A CFD investigation
Cabot, "A dynamic subgrid-scale eddy viscosity model," Physics of Fluids A, vol.
Effects of Low Incoming Turbulence on the Flow around a 5:1 Rectangular Cylinder at Non-Null-Attack Angle
is introduced in a Large-Eddy Simulation with a pure eddy viscosity model.
Large-Eddy simulation and multigrid methods
New turbulence models are added in this upgraded version, including a large eddy simulation and a nonlinear eddy viscosity model.
Multidimensional fludi flow analysis. (Software exchange)
Development and application of a cubic eddy viscosity model of turbulence, Int.
Numerical investigation of the heat transfer in an annulus cylindrical space/Silumos perdavimo ziediniame cilindre skaitine analize
2006) simulated ventilation in tunnels and galleries with the constant turbulent eddy viscosity model, the k-[epsilon] model, and the S-A model.
Evaluation of various turbulence models in predicting airflow and turbulence in enclosed environments by CFD: Part 1 -- summary of prevalent turbulence models
Benhamza and Belaid [12] also used the eddy viscosity model for their simulation.
Numerical investigation of thermo-fluid dynamics of two triangular jets/Dvieju trikampiu karsto skyscio ciurksliu dinamikos tyrimas
The turbulence modeling community has responded by developing model equations of ever increasing complexity, ranging from the nonlinear eddy viscosity models where the Reynolds stress is nonlinearly related to the mean rate of strain, to the full Reynolds-stress transport models where each component of the Reynolds stress is governed by its own transport equation (able to resolve secondary flows).
CFD analysis of pressure losses in flat-oval duct fittings
Thus, it was not very surprising to see the good performance of these eddy viscosity models.
Assessment of various turbulence models for transitional flows in an enclosed environment (RP-1271)
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