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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
Supervisors
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
field, quantifying the uncertainty related with this method remains a challenging
task. The purpose of this work is to provide a procedure for estimating the un-
certainties associated with time-averaged two dimensional flow field measurements
obtained by PIV. An example of uncertainty analysis is conducted for a stirred
tank. However, the analysis may be generally applied to any mean velocity field.
The validity of this work is demonstred via Monte Carlo simulations. In the
simulated recordings, the effect of particle image displacement, velocity gradient
and seeding density are considered.
This work tries to point out the importance of velocity gradients and out-plane
motion on the accuracy of the measurements.
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