6533b7cffe1ef96bd1258e21
RESEARCH PRODUCT
Efficiency of a digital particle image velocimetry (DPIV) method for monitoring the surface velocity of hyper-concentrated flows
Donatella TerminiAlice Di Leonardosubject
Digital particle image techniqueScale (ratio)Acoustics0208 environmental biotechnologyFlow (psychology)Surface velocityImage processing02 engineering and technologyInflow01 natural sciences010305 fluids & plasmasExperimentPosition (vector)Digital particle image technique surface velocity remote monitoring experiments0103 physical sciencesMATLABcomputer.programming_languagelcsh:QE1-996.5experiments020801 environmental engineeringlcsh:GeologyRemote monitoringParticle image velocimetryFlow velocityGeneral Earth and Planetary Sciencescomputerdescription
Digital particle image velocimetry records high resolution images and allows the identification of the position of points in different time instants. This paper explores the efficiency of the digital image-technique for remote monitoring of surface velocity and discharge measurement in hyper-concentrated flow by the way of laboratory experiment. One of the challenges in the application of the image-technique is the evaluation of the error in estimating surface velocity. The error quantification is complex because it depends on many factors characterizing either the experimental conditions or/and the processing algorithm. In the present work, attention is devoted to the estimation error due either to the acquisition time or to the size of the sub-images (interrogation areas) to be correlated. The analysis is conducted with the aid of data collected in a scale laboratory flume constructed at the Hydraulic laboratory of the Department of Civil, Environmental, Aerospace and of Materials Engineering (DICAM)&mdash
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-10-19 |