Abstract
Using a vector wavelet decomposition of the velocity field a simple model for locally isotropic turbulence has been derived from the Navier-Stokes equation (NSE). This model, which involves no empirical or ad hoc parameter, incorporates nonlocal interscale interactions, reveals backscatter and can be applied to represent small-scale turbulence in LES schemes. The model gives a stationary solution which corresponds to k-5/3 Kolmogorov spectrum. Moreover, the model equations produce k4 infrared spectrum from an initial energy peak at intermediate scales.
Original language | English (US) |
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Pages (from-to) | 2925-2927 |
Number of pages | 3 |
Journal | Physics of Fluids |
Volume | 7 |
Issue number | 12 |
DOIs | |
State | Published - 1995 |
ASJC Scopus subject areas
- Computational Mechanics
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Fluid Flow and Transfer Processes