[CFD] The k - epsilon Turbulence Model

An introduction to the k - epsilon turbulence model that is used by all mainstream CFD codes (OpenFOAM, Fluent, CFX, Star, COMSOL, Saturne). The following topics are covered:

1) 9:30 What is the standard k - epsilon model?

2) 11:05 How has the model evolved over time and what variant am I using?

3) 13:30 What are the damping functions and why are they needed?

4) 17:56 What are high-Re and low-Re formulations of the k - epsilon model?

#kEpsilon #fluidmechanics101 #cfd

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Some useful references:

1) W. P. Jones and B. E. Launder
The prediction of laminarization with a two-equation model of turbulence, Int. Journal of Heat and Mass Transfer, 15, 1972, pp. 301-314.
https://www.researchgate.net/publication/313117966_The_Prediction_of_Laminarization_with_a_Two-Equation_Model_of_Turbulence

2) B. E. Launder and D. B. Spalding
The numerical computation of turbulent flows, Comp. Methods in App. Mech and Engineering 3, 1974, pp. 269-289.
https://www.researchgate.net/publication/312919474_The_numerical_computation_of_turbulent_flows

3) B. E. Launder and B. I. Sharma
Application of the energy dissipation model of turbulence to the calculation of flow near a spinning disc, Letters in Heat and Mass Transfer, 1974, 1, pp. 131-138.
https://www.researchgate.net/publication/284652999_Application_of_the_energy-dissipation_model_of_flow_near_a_spinning_disc

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Видео [CFD] The k - epsilon Turbulence Model канала Fluid Mechanics 101