AM06-03-002 乱流の大規模直接数値計算に基づくマルチフラクタル解析(乱流渦構造(1),一般講演)

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  • AM06-03-002 Multifractal Analysis by Using High-Resolution Direct Numerical Simulation of Turbulence

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Multifractal analysis is performed by using the high-resolution DNS data of turbulence with the number of grid points up to 4096^3. The analysis shows that the so-called generalized dimensions of energy dissipation and enstrophy can be obtained as almost scale-independent expornents provided that the scale is in the inertial subrange. Reynolds number dependence of multifractal measures such as the so-called f(α) spectra is discussed.

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