Journal article
Biases of PIV measurement of turbulent flow and the masked correlation-based interrogation algorithm
Experiments in fluids, Vol.30(1), pp.27-35
2001
DOI: 10.1007/s003480000131
Abstract
Influences of evaluation bias of the correlation-based interrogation algorithm on particle image velocimetry (PIV) measurement of turbulent flow are investigated. Experimental tests in the Iowa Institute of Hydraulic Research towing tank with a towed PIV system and a surface-piercing flat plate and simulations demonstrate that the experimentally determined mean velocity and Reynolds stress components are affected by the evaluation bias and the gradient of the evaluation bias, respectively. The evaluation bias and gradient of the evaluation bias can both be minimized effectively by using Gaussian digital masks on the interrogation window, so that the measurement uncertainty can be reduced.
Details
- Title: Subtitle
- Biases of PIV measurement of turbulent flow and the masked correlation-based interrogation algorithm
- Creators
- L GUI - Iowa Institute of Hydraulic Research (IIHR), The University of Iowa, Iowa City, IA 52242, United StatesJ LONGO - Iowa Institute of Hydraulic Research (IIHR), The University of Iowa, Iowa City, IA 52242, United StatesF STERN - Iowa Institute of Hydraulic Research (IIHR), The University of Iowa, Iowa City, IA 52242, United States
- Resource Type
- Journal article
- Publication Details
- Experiments in fluids, Vol.30(1), pp.27-35
- Publisher
- Springer; Heidelberg; Berlin
- DOI
- 10.1007/s003480000131
- ISSN
- 0723-4864
- eISSN
- 1432-1114
- Language
- English
- Date published
- 2001
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064230702771
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