The development of truncated inviscid turbulence and the Fermi-Pasta-Ulam problem.
A study was made of the possible similarity between the development of truncated, inviscid turbulence and the Fermi-Pasta-Ulam (FPU) problem. For the case of a constant time scale, which resembles the FPU problem, a significant increase in the time to achieve equipartition was found when the initial energy was decreased. At first a few modes were generated and only rather late in the spectral development other modes appear and equipartition was established.
Ooms
G
G
J. M. Burgerscentrum, Delft University of Technology, Faculty of Mechanical Engineering, Laboratory for Aero- and Hydrodynamics, Mekelweg 2, 2628 CD Delft, The Netherlands.
Boersma
B J
BJ
D000465:Algorithms; D003198:Computer Simulation; D017711:Nonlinear Dynamics; D009991:Oscillometry / Q000379:methods*