- AutorIn
- Kevin J. Bos
- K. Gordon Wilson
- Benedict Newling
- Titel
- Velocity-sensitised Magnetic Resonance Imaging of foams
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa-184242
- Quellenangabe
- Diffusion fundamentals - 18
- Quellenangabe
- Diffusion fundamentals 18 (2013) 5, S. 1-4
- Erstveröffentlichung
- 2013
- Abstract (EN)
- Although flowing foams are used in a variety of technologies, foam rheology is still incompletely understood. In this paper we demonstrate the use of a velocity-sensitised magnetic resonance imaging (MRI) sequence for the study of flowing foam. We employ a constant-time (pure phase encode) imaging technique, SPRITE, which is immune to geometrical distortions caused by the foam-induced magnetic field inhomogeneity. The sample magnetisation is prepared before the SPRITE imaging with the Cotts 13-interval motion-sensitisation sequence, which is also insensitive to the effects of the foam heterogeneity. We measure the development of a power-law velocity profile in the foam downstream of a Venturi constriction (in which the cross-section of the tube decreases by 89% in area) in a vertical, cylindrical pipe.
- Freie Schlagwörter (DE)
- Diffusion, Transport
- Freie Schlagwörter (EN)
- diffusion, transport
- Klassifikation (DDC)
- 530
- Herausgeber (Institution)
- University of New Brunswick
- Universität Leipzig
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa-184242
- Veröffentlichungsdatum Qucosa
- 20.10.2015
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch