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Tesi etd-04152015-112330


Thesis type
Tesi di laurea magistrale
Author
BORRELLI, MASSIMO
URN
etd-04152015-112330
Title
Estimation of the uncertainties and errors in PIV measurement in a mixing tank
Struttura
INGEGNERIA DELL'ENERGIA, DEI SISTEMI, DEL TERRITORIO E DELLE COSTRUZIONI
Corso di studi
INGEGNERIA ENERGETICA
Commissione
relatore Prof. Ambrosini, Walter
correlatore Ing. Cariteau, Benjamin
Parole chiave
  • Errors
  • Uncertainties
  • Particle Image Velocimetry
Data inizio appello
07/05/2015;
Consultabilità
parziale
Data di rilascio
07/05/2018
Riassunto analitico
While PIV is an estabilshed experimental technique for determining a velocity<br>field, quantifying the uncertainty related with this method remains a challenging<br>task. The purpose of this work is to provide a procedure for estimating the un-<br>certainties associated with time-averaged two dimensional flow field measurements<br>obtained by PIV. An example of uncertainty analysis is conducted for a stirred<br>tank. However, the analysis may be generally applied to any mean velocity field.<br>The validity of this work is demonstred via Monte Carlo simulations. In the<br>simulated recordings, the effect of particle image displacement, velocity gradient<br>and seeding density are considered.<br>This work tries to point out the importance of velocity gradients and out-plane<br>motion on the accuracy of the measurements.
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