Study of spectral characteristics of a homogeneous turbulent flow

Study of spectral characteristics of a homogeneous turbulent flow

A spectral representation of kinetic energy for a vortex cascade of instability in a compressible inviscid shear flow is considered, and the Rayleigh-Taylor instability is studied. A comparative analysis is given to the spectral decompositions of kinetic energy for both problems. The classical Kolmo...

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Veröffentlicht in:Computational mathematics and mathematical physics 2012-02, Vol.52 (2), p.285-291
Hauptverfasser: Belotserkovskii, O. M., Fortova, S. V.
Format: Artikel
Sprache:eng
Schlagworte:
CAD
Computational fluid dynamics
Computational mathematics
Computational Mathematics and Numerical Analysis
Computer aided design
Energy dissipation
Experiments
Fluid dynamics
Fluid flow
Hypotheses
Kinetic energy
Kinetics
Mathematical analysis
Mathematical models
Mathematics
Mathematics and Statistics
Numbers
Representations
Simulation
Spectra
Studies
Turbulence
Turbulent flow
Velocity
Viscosity
Vortices
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Beschreibung
Zusammenfassung:A spectral representation of kinetic energy for a vortex cascade of instability in a compressible inviscid shear flow is considered, and the Rayleigh-Taylor instability is studied. A comparative analysis is given to the spectral decompositions of kinetic energy for both problems. The classical Kolmogorov −5/3 power law is proved to hold for developed turbulent flows.
ISSN:0965-5425
1555-6662
DOI:10.1134/S0965542512020030