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Modification of a turbulent spectrum through the injection of a monochronatic wave. Part 1. The evolution equation

Published online by Cambridge University Press:  13 March 2009

Armando L. Brinca
Affiliation:
Complexo Interdisciplinar, Instituto Superior TécnicoLisbon-1, Portugal

Abstract

Analysis of the influence of an injected monochromatic wave on a turbulent spectrum shows that the evolution equation of the ensemble average distribution function is significantly different from the classical diffusion equation in velocity space. The average turbulent collision operator involves the usual spatial and temporal autocorrelation of the stochastic field, together with the correlation of this field with its spatial gradient, and the velocity derivatives are complemented by spatial derivatives

Type
Research Article
Copyright
Copyright © Cambridge University Press 1976

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References

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