Nonlocal triad interactions and the dissipation range of isotropic turbulence
- 1 September 1992
- journal article
- Published by AIP Publishing in Physics of Fluids A: Fluid Dynamics
- Vol. 4 (9) , 2037-2045
- https://doi.org/10.1063/1.858373
Abstract
Detailed transfer functions T(k‖p,q), which express turbulent energy transfer rate to modes k caused by their nonlinear interactions with modes p and q, are analyzed using results of direct numerical simulations of homogeneous turbulence. A previously found phenomenological scaling for the functions T(k‖p,q), which brings them into a self-similar form, is used to deduce the form of the energy spectrum in the dissipation range proportional to k−2 exp(−ak) and the transfer spectrum proportional to exp(−ak). A physical mechanism of the energy transfer process consistent with the self-similarity scaling is proposed.This publication has 18 references indexed in Scilit:
- Triad interactions in a forced turbulencePhysics of Fluids A: Fluid Dynamics, 1992
- The nature of triad interactions in homogeneous turbulencePhysics of Fluids A: Fluid Dynamics, 1992
- The response of isotropic turbulence to isotropic and anisotropic forcing at the large scalesPhysics of Fluids A: Fluid Dynamics, 1991
- Local energy transfer and nonlocal interactions in homogeneous, isotropic turbulencePhysics of Fluids A: Fluid Dynamics, 1990
- Velocity, scalar and transfer spectra in numerical turbulenceJournal of Fluid Mechanics, 1990
- Simple Eulerian time correlation of full-and narrow-band velocity signals in grid-generated, ‘isotropic’ turbulenceJournal of Fluid Mechanics, 1971
- Decay of Weak TurbulencePhysics of Fluids, 1970
- Small-Scale Structure of a Scalar Field Convected by TurbulencePhysics of Fluids, 1968
- On the fine-scale structure of vector fields convected by a turbulent fluidJournal of Fluid Mechanics, 1963
- Small-scale variation of convected quantities like temperature in turbulent fluid Part 1. General discussion and the case of small conductivityJournal of Fluid Mechanics, 1959