http://www.cnr.it/ontology/cnr/individuo/prodotto/ID241334

Stereo PIV flow-calibration in towing tank (Contributo in atti di convegno)

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Label

Stereo PIV flow-calibration in towing tank (Contributo in atti di convegno) (literal)

Anno

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S. Grizzi, F. Di Felice (2007)
Stereo PIV flow-calibration in towing tank
in XV AIVELA National Meeting, Milano, 29-20 November 2007
(literal)

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The Italian Association of LAser VElocimetry and non invasive diagnostics (literal)

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Abstract

An enhancement of Stereo PIV calibration is presented. The feature of this technique is to calibrate the Stereo system directly from a uniform flow measurement. This is achieved making a first two-dimensional calibration of the measurement plane using a standard dotted target, then getting information of perspective and laser sheet thickness from some measurements of well-known flows (uniform flow). This technique results in three-dimensional measurements of high accuracy with a simple calibration phase and reduces mechanical misalignment and dot recognition errors. A very simple application of this technique is performed in towing tanks. The technique is tested to a tip vortex couple of a submarine bridge fin. (literal)

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