An efficient method for the construction of a multiaffine process, with prescribed scaling exponents, is presented. At variance with the previous proposals, this method is sequential and therefore it is the natural candidate in numerical computations involving synthetic turbulence. The application to the realization of a realistic turbulentlike signal is discussed in detail. The method represents a first step towards the realization of a realistic spatiotemporal turbulent field.
Mimicking a turbulent signal: Sequential multiaffine processes / L., Biferale; G., Boffetta; A., Celani; Crisanti, Andrea; Vulpiani, Angelo. - In: PHYSICAL REVIEW E. - ISSN 1063-651X. - STAMPA. - 57:(1998), pp. R6261-R6264. [10.1103/PhysRevE.57.R6261]
Mimicking a turbulent signal: Sequential multiaffine processes
CRISANTI, Andrea;VULPIANI, Angelo
1998
Abstract
An efficient method for the construction of a multiaffine process, with prescribed scaling exponents, is presented. At variance with the previous proposals, this method is sequential and therefore it is the natural candidate in numerical computations involving synthetic turbulence. The application to the realization of a realistic turbulentlike signal is discussed in detail. The method represents a first step towards the realization of a realistic spatiotemporal turbulent field.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
