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Type: Journal article
Title: Fast-convergent iterative scheme for filtering velocity signals and finding Kolmogorov scales
Author: Mi, J.
Deo, R.
Nathan, G.
Citation: Physical Review E. (Statistical, Nonlinear, and Soft Matter Physics), 2005; 71(6):066304-1-066304-5
Publisher: American Physical Soc
Issue Date: 2005
ISSN: 1539-3755
Statement of
J. Mi, R. C. Deo, and G. J. Nathan
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.
Rights: ©2005 American Physical Society
RMID: 0020050656
DOI: 10.1103/PhysRevE.71.066304
Appears in Collections:Mechanical Engineering publications
Environment Institute Leaders publications

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