Hierarchy of the Velocity Structure Functions in Fully Developed Turbulence
نویسندگان
چکیده
منابع مشابه
Anomalous scaling for Lagrangian velocity structure functions in fully developed turbulence.
A hierarchical structure model is developed for anomalous scaling of the Lagrangian velocity structure functions in fully developed turbulence. This model is an extension of the Eulerian hierarchical structure model of She and Leveque [Phys. Rev. Lett. 72, 366 (1994)] to the Lagrangian velocity structure functions, where the straining and sweeping hypotheses are used to build up the relationshi...
متن کاملParametric study of a viscoelastic RANS turbulence model in the fully developed channel flow
One of the newest of viscoelastic RANS turbulence models for drag reducing channel flow with polymer additives is studied in different flow and rheological properties. In this model, finitely extensible nonlinear elastic-Peterlin (FENE-P) constitutive model is used to describe the viscoelastic effect of polymer solution and turbulence model is developed in the k-ϵ-(ν^2 ) ̅-f framework. The geome...
متن کاملUniversality in fully developed turbulence.
We extend the numerical simulations of She et al. (1993)] of highly turbulent ow with 15 Taylor-Reynolds number Re 200 up to Re 45 000, employing a reduced wave vector set method (introduced earlier) to approximately solve the Navier-Stokes equation. First, also for these extremely high Reynolds numbers Re , the energy spectra as well as the higher moments { when scaled by the spectral intensit...
متن کاملSynchronization of chaos in fully developed turbulence.
We investigate chaos synchronization of small-scale motions in the three-dimensional turbulent energy cascade, via pseudospectral simulations of the incompressible Navier-Stokes equations. The modes of the turbulent velocity field below about 20 Kolmogorov dissipation lengths are found to be slaved to the chaotic dynamics of larger-scale modes. The dynamics of all dissipation-range modes can be...
متن کاملAsymmetry of Velocity Increments in Fully Developed Turbulence and the Scaling of Low-Order Moments.
K. R. Sreenivasan,1,2 S. I. Vainshtein,3 R. Bhiladvala,2 I. San Gil,2 S. Chen,4 and N. Cao4 1School of Mathematics, Institute for Advanced Study, Princeton, New Jersey 08540 2Mason Laboratory, Yale University, New Haven, Connecticut 06520 3Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637 4Thomas J. Watson Research Center, IBM, Yorktown Heights, New York 1...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal de Physique II
سال: 1995
ISSN: 1155-4312,1286-4870
DOI: 10.1051/jp2:1995144