Abstract
By introducing the Fourier filters, we analyse the correlation between large- and small-scale velocity components in homogeneous isotropic turbulence theoretically. We show that different Fourier filters act similarly on this multi-scale correlation with a "natural" mechanism of removing the physical correlations between large- and small-scale velocity components. This conclusion calls for the further investigation on the Hilbert-Huang decomposition to investigate the mechanism of Marusic et al (2008).
| Original language | English |
|---|---|
| Article number | 062008 |
| Pages (from-to) | 62008 |
| Number of pages | 1 |
| Journal | Theoretical and Applied Mechanics Letters |
| Volume | 4 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2014 |
Keywords
- Correlation function
- Fourier transform
- Homogeneous isotropic turbulence
- Large-eddy simulation
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