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- Title
Parametrization and universal properties of turbulence of an incompressible fluid.
- Authors
Gordienko, S. N.; Moiseev, S. S.
- Abstract
A relation is established between the properties of turbulent flow, the force f[sub 0] setting the fluid in motion, and the spatial r[sub 0] and temporal τ[sub 0] turbulence scales. It is established that the Loıtsyanskiı integral diverges for such turbulence. It is shown that the spectral properties of turbulence depend on the quantity γ=f[sub 0]τ[sub 0][sup 2]/r[sub 0]. The spectrum of turbulent pulsations consists of several universal segments, whose appearance and arrangement depend on γ. It is shown that the parameter Γ=γ[sup 4/3] Re determines the specific dissipation power. The cases of large and small parameters γ and Γ are studied in detail. The physical mechanism leading to “switching off” of dissipation in the limit Γ>1 is determined. © 1998 American Institute of Physics.
- Subjects
TURBULENCE; FLUID mechanics
- Publication
JETP Letters, 1998, Vol 68, Issue 3, p204
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567847