Electronic Resource
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
4 (1992), S. 1245-1250
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Results from full numerical simulations of the Navier–Stokes equations for three-dimensional, stationary, and isotropic turbulence are used (1) to study the scaling properties of two-time modal velocity correlations and (2) to determine the dominant process in the decorrelation of the small-scale velocities. The main results obtained are (1) that the convective sweeping of the small scales by the energy-containing large scales determines the scaling property of the inertial- and near-dissipation ranges and (2) that the sweeping effect is dominant in the decorrelation of the small scales. Reynolds-number dependence of the decorrelation is also considered.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.858242
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