Abstract
A multiple-scale analysis (homogenization) is applied to study the stability of steady cellular solutions of the one-dimensional Kuramoto-Sivashinsky equation with 2π-periodic boundary conditions. It is found that these solutions exhibit visco-elastic behaviour under very large wavelength perturbations. This elasticity property is then extended to Navier-Stokes turbulence. It is suggested that two-dimensional flame fronts and various turbulent flows (e.g. solar granulation and cloud streets) may display elasticity. Inclusion of elasticity into engineering turbulence modelling is also discussed.
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She, Z.S., Frisch, U., Thual, O. (1985). Homogenization and visco-elasticity of turbulence. 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_1
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DOI: https://doi.org/10.1007/3-540-15644-5_1
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