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An algebraic-Q 4 turbulence model for attached and separated airfoil flows

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Abstract

An algebraic eddy viscosity model, based on a new length scale has been developed. The model proposes the eddy viscosity as a solution of a quartic (Q 4) equation. The turbulent length scale for attached and separated flows is defined by employing a vorticity functionF =yΩD introduced in the Baldwin-Lomax model. The algebraic-Q 4 eddy viscosity model was incorporated into Navier-Stokes code and tested for complex transonic airfoil flows with separation. The results are compared with the experimental data.

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Yakhot, A., Shalman, E., Igra, O. et al. An algebraic-Q 4 turbulence model for attached and separated airfoil flows. J Sci Comput 11, 71–98 (1996). https://doi.org/10.1007/BF02088818

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