Abstract
Spectral two-point closures are used to derive a subgrid scale model for large eddy simulations of velocity and passive scalar fields of fully developed three-dimensional isotropic turbulence. This model is a “full coupling” of explicit calculations of large scales and statistical evolutions of small scales. It can be simplified into a formalism of eddy-viscosity and eddy diffusivity. The predictability of the large scales is impaired by the growth of errors which can appear in small scales ; this error-growth is studied by comparing two realizations of the velocity field.
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© 1985 Springer-Verlag
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Chollet, JP. (1985). Spectral closures to derive a subgrid scale modeling for large eddy simulations. In: Frisch, U., Keller, J.B., Papanicolaou, G.C., Pironneau, O. (eds) Macroscopic Modelling of Turbulent Flows. Lecture Notes in Physics, vol 230. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-15644-5_13
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DOI: https://doi.org/10.1007/3-540-15644-5_13
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