1000 resultados para Les Luthiers


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Validated by comparison with DNS, numerical database of turbulent channel flows is yielded by Large Eddy Simulation (LES). Three conventional techniques: uv quadrant 2, VITA and mu-level techniques for detecting turbulent bursts are applied to the identification of turbulent bursts. With a grouping parameter introduced by Bogard & Tiedemann (1986) or Luchik & Tiederman (1987), multiple ejections detected by these techniques which originate from a single burst can be grouped into a single-burst event. The results are compared with experimental results, showing that all techniques yield reasonable average burst period. However, uv quadrant 2 and mu-level are found to be superior to VITA in having large threshold-independent range.

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Hydrophobic surface benefits for drag reduction. Min and Kim[1] do the first Direct Numerical Simulation on drag reduction in turbulent channel flow. And Fukagata and Kasagi[2] make some theoretical analysis based on Dean[3]'s formula and some observations in the DNS results. Using their theory, they conclude that drag reduction is possible in large Reynolds number. Both Direct Numerical Simulation (DNS) and Large Eddy Simulation (LES) are performed in our research. How the LES behaving in the turbulent channel flow with hydrophobic surface is examined. Original Smagorinsky model and its Dynamical model are used in LES. The slip velocities predicted by LES using Dynamical model are in good agreement with DNS as shown in the Figure. Although the percentage of drag reduction predicted by LES shows some discrepancies, it is in the error limit for industrial flow. First order and second order moments of LES are also examined and compared with DNS's results. The first-order moments is calculated well by LES. But there are some discrepancies of second-order moments between LES and DNS. [GRAPHICS]

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As Voyages... são estudos completos, abrangendo todos os aspectos das regiões percorridas; servem de subsídio ao estudo das condições de vida no Brasil no século passado. "Fonte primordial de informações sobre os prédios coloniais do Rio de Janeiro, Minas Gerais, São Paulo, Santa Catarina e Goiás. Poucas obras no gênero atingem o valor de Saint-Hilarire. São clássicas e indispensáveis para o estudo do sul do Brasil, antes da Independência" segundo Borba de Moraes

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En une génération, entre 1975 et 1995, le paysage du marché du travail auquel les jeunes font face a radicalement changé.

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Aborda, sob o aspecto econômico, temas relacionados com a morte.

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Nota de conteúdo : V.1. Memoire en reponse aux allegations de la France, accompagne de quelques cartes -- V. 2-3. Documents accompagnes de notes explicatives ou rectificatives, 1. ptie, 1536-1713 ; 2. ptie, 1713-1896 -- V. 4. Texte original de documents traduits dans les tomes 2 et 3 -- V. 5. Album : fac-simile de quelques documents reproduits aux tomes 2, 3 et 4 -- V. 6. Atlas : contenant 86 cartes.

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Titulo original : travels in brazil : in the years from 1809, to 1815.

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Ouvrage enrichi d'un superbe atlas, compose de 41 planches gravées en taille-douce, et de trois carte.