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Détermination des vitesses de glissement dans un écoulement diphasique par utilisation de la vélocimétrie ultrasonore Doppler pulsée
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jaafar, Walid Bekkour, Karim |
| Copyright Year | 2007 |
| Abstract | The study of two-phase flow, such as liquid-solid suspensions, requires the development of adequate experimental tools. They must allow the determination of both velocity distributions for the two species mixed together. It has been demonstrated that the use of ultrasound velocimetry for two-phase flow is able to characterise the dynamic properties of the transported particles. Then, the sliding velocities can be investigated. A significant change of the velocity profile, due to the presence of the solid phase can be observed. However, the direct interpretation of the measurements appears very difficult. The study of the velocity histograms allows us to determine both fluid and solid particles velocities. We interpret the first of the two peaks as the fluid particle velocity and the second peak as the suspension velocity. Mots-clefs : Velocimetrie ultrasonore ; ecoulement diphasique ; vitesse de glissement |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://documents.irevues.inist.fr/bitstream/handle/2042/16239/CFM2007-0075.pdf;jsessionid=A2BF5D41911E7D42C87CE934B2ACA0B7?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
