Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishGravity currents are flows produced by a density difference between two fluids. Non-intrusive density measurements, based on image analysis, are employed to measure the instantaneous width averaged density fields of lock-release gravity currents. The developed technique uses dye concentration as a tracer. For each pixel of the acquired images, a calibration procedure is applied to relate the concentration of dye, uniformly distributed in the experimental tank, and the greyscale. Two calibration techniques with nine-image and two-image calibration curves, respectively, are employed to evaluate the instantaneous density fields of a gravity current with and without a bottom obstacle. The two different calibration curves affect the measurement results, i.e. instantaneous density fields, front propagation, current area and mixing. The image analysis using a nine-image calibration curve is found to give better results compared to the technique with a two-image calibration curve. The analysis performed shows how the image analysis based on a nine-image calibration curve is a more suitable technique for the study of the gravity currents dynamics and the associated mixing, which are strongly affected by the presence of a bottom obstacle.
Adduce, C., Maggi, M.R., & De Falco, M.C. (2022). Non-intrusive density measurements in gravity currents interacting with an obstacle. ACTA GEOPHYSICA [10.1007/s11600-021-00709-z].
| Titolo: | Non-intrusive density measurements in gravity currents interacting with an obstacle | |
| Autori: | ||
| Data di pubblicazione: | 2022 | |
| Rivista: | ||
| Citazione: | Adduce, C., Maggi, M.R., & De Falco, M.C. (2022). Non-intrusive density measurements in gravity currents interacting with an obstacle. ACTA GEOPHYSICA [10.1007/s11600-021-00709-z]. | |
| Handle: | http://hdl.handle.net/11590/396637 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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