Titlebook: Statistical Theories and Computational Approaches to Turbulence; Modern Perspectives Yukio Kaneda (Professor),Toshiyuki Gotoh (Professo Co

Angiogenesis

浮雕

大雨

吞噬

CRASS

LES Study on the Very Large-Scale Structures of Wall-Bounded Turbulence and an Effect of Thermal Strnce and the effect of thermal stratification on these structures. Large Eddy Simulation (LES) is adopted as a numerical method in this work. We have found that the large-scale structures are similar to the streak-like structures observed in the vicinity of the wall but their size is hundreds times l

Parameter

High Resolution DNS of Incompressible Homogeneous Forced Turbulence —Time Dependence of the Statisti with emphasis on the time dependence of the turbulence statistics. The Taylor micro scale Reynolds number at a quasi-stationary state is 283 in the DNS with 1024. grid points, and the energy spectrum exhibits an universal equilibrium range. The results suggest that for .. > 280 or so, the energy di

懸崖

Subgrid Models for Two-Dimensional Turbulence based on Lagrangian Spectral Theoryngevin-type equation containing an eddy damping factor and a random force. The eddy damping and forcing are expressed as functionals of the energy spectrum using the Marko-vianized Lagrangian renormalized approximation (MLRA), a Lagrangian spectral the-ory without . parameters. It is found that the

GRACE

LES Modelings based on the Lagrangian Renormalized Approximation simulate the energy spectrum and a probabilistic LES to simulate both the energy spectrum and the error spectrum are formulated for 3-dimensional turbulence and 2-dimensional turbulence with the inverse energy cascading range. The derived models are free from any ad hoc parameters. The models are v

ULCER

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