Two-dimensional trajectories of droplets passing through a vertical venturi have been measured and analysed. The undisturbed velocity field is measured by LDA. The drag coefficient is determined by the means of force balance on the particle. From acquired images, using a high-speed video camera, droplet deformation has been studied The comparison between measured and calculated trajectories highlight the need to develop a new correlation for the drag coefficient. Droplet deformation seems to have a scarce influence on acceleration effects on the drag coefficient.
EXPERIMENTAL AND THEORETICAL STUDY OF A SINGLE DROPLET MOTION IN AN ACCELERATED FLOW / Alimonti, Claudio; Bilardo, Ugo; A., Martino; CWM VAN DER, Geld. - STAMPA. - (2002), pp. 628-646. (Intervento presentato al convegno 8° Conv. Int. su su "Fluidodinamica Multifase nell'Impiantistica Industriale" tenutosi a Alba (CN) nel 18-20 Settembre).
EXPERIMENTAL AND THEORETICAL STUDY OF A SINGLE DROPLET MOTION IN AN ACCELERATED FLOW
ALIMONTI, Claudio;BILARDO, Ugo;
2002
Abstract
Two-dimensional trajectories of droplets passing through a vertical venturi have been measured and analysed. The undisturbed velocity field is measured by LDA. The drag coefficient is determined by the means of force balance on the particle. From acquired images, using a high-speed video camera, droplet deformation has been studied The comparison between measured and calculated trajectories highlight the need to develop a new correlation for the drag coefficient. Droplet deformation seems to have a scarce influence on acceleration effects on the drag coefficient.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
