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Th`ese de Doctorat L'ECOLE CENTRALE DE LYON Ecole Doctorale ...

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CHAPITRE 2. ETU<strong>DE</strong> <strong>DE</strong>S QUANTITÉS STATISTIQUES IMPORTANTES POUR LE MÉLANGE TURBULENT10.80.6K1K2K3K4Ruu0.40.20−0.20 2 4 6 8 10t/T kiFigure 2.21: Corrélation <strong>de</strong> vitesse Eulérienne par le filtre ’Narrow-Band’ et normaliséepar l’échelle temporelle. Re λ = 94 .Figure 2.22: Corrélation <strong>de</strong> vitesse Eulérienne obtenue par la DNS <strong>de</strong> Squires. Re λ = 43 .Nombre d’on<strong>de</strong>: k = 2 + 5n , et n = 1, 2,...11.75

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