Accession Number : AD0616610

Title :   A STUDY OF BURGERS' MODEL EQUATION OF TURBULENCE,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS INST OF TECH

Personal Author(s) : Jeng,Dah-teng

Report Date : MAY 1965

Pagination or Media Count : 48

Abstract : Turbulence generated by Burger's model equation yielded good approximation to real turbulence. The energy spectrum fell off like k to the -2 power for times greater than 6 seconds. The energy spectrum of turbulence generated by the model equation was found to follow the k to the -2 power law. The spectrum obtained by the Wiener-Hermite expansion of the model equation and the spectrum of real turbulence show the same result. It was concluded that the probability distribution of turbulence velocity fields becomes almost Gaussian distribution even when starting with a nonGaussian distribution. (Author)

Descriptors :   (*TURBULENCE, STATISTICAL ANALYSIS), PARTIAL DIFFERENTIAL EQUATIONS, STOCHASTIC PROCESSES, STATISTICAL PROCESSES, FUNCTIONAL ANALYSIS, PERTURBATION THEORY, NUMERICAL INTEGRATION, PROBABILITY, ENERGY, GRAPHICS, DIGITAL COMPUTERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE