Research Article

Experiments in Fluids

, Volume 53, Issue 6, pp 1815-1821

Open Access This content is freely available online to anyone, anywhere at any time.

A statistical method for transforming temporal correlation functions from one-point measurements into longitudinal spatial and spatio-temporal correlation functions

  • H. NobachAffiliated withMax Planck Institute for Dynamics and Self-Organization Email author 
  • , C. TropeaAffiliated withCenter of Smart Interfaces, Institute of Fluid Mechanics and Aerodynamics, Technische Universität Darmstadt

Abstract

The transformation of temporal, one-point correlation functions into longitudinal spatial and spatio-temporal correlation functions in turbulent flows using a simple statistical convection model is introduced. To illustrate and verify the procedure, experimental data (one-point and two-point) have been obtained with a laser Doppler system from a turbulent, round, free-air jet.