Fast-convergent iterative scheme for filtering velocity signals and finding Kolmogorov scales

J. Mi, R. C. Deo, and G. J. Nathan
Phys. Rev. E 71, 066304 – Published 13 June 2005

Abstract

The present fundamental knowledge of fluid turbulence has been established primarily from hot- and cold-wire measurements. Unfortunately, however, these measurements necessarily suffer from contamination by noise since no certain method has previously been available to optimally filter noise from the measured signals. This limitation has impeded our progress of understanding turbulence profoundly. We address this limitation by presenting a simple, fast-convergent iterative scheme to digitally filter signals optimally and find Kolmogorov scales definitely. The great efficacy of the scheme is demonstrated by its application to the instantaneous velocity measured in a turbulent jet.

  • Figure
  • Figure
  • Figure
  • Received 30 September 2004

DOI:https://doi.org/10.1103/PhysRevE.71.066304

©2005 American Physical Society

Authors & Affiliations

J. Mi, R. C. Deo, and G. J. Nathan

  • School of Mechanical Engineering, University of Adelaide, South Australia 5005, Australia

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 71, Iss. 6 — June 2005

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review E

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×