SCALING PROPERTIES IN LARGE ASSEMBLIES OF SIMPLE DYNAMICAL UNITS DRIVEN BY LONG-WAVE RANDOM FORCING

Large assemblies of nonlinear dynamical units driven by a long-wave fl uctuating external field are found to generate strong turbulence with scaling properties. This type of turbulence is so robust that it persi sts over a finite parameter range with parameter-dependent exponents o f singularity, and is insensitive to the specific nature of the dynami cal units involved. Whether or not the units are coupled with their ne ighborhood is also unimportant. It is discovered numerically that the derivative of the original amplitude field exhibits strong spatial int ermittency with multifractal structure.