title: SPRITE MRI of bubbly flow in a horizontal pipe.
abstract: Bubble flow is characterised by numerous phase interfaces and turbulence, leading to fast magnetic resonance signal decay and artefacts in spin-warp imaging. In this paper, the SPRITE MRI pulse sequence, with its potential for very short encoding times, is demonstrated as an ideal technique for studying such dynamic systems. It has been used to acquire liquid velocity and relative intensity maps of two-phase gas-liquid dispersed bubble flow in a horizontal pipe at a liquid Reynolds number of 14,500. The fluids were air and water and a turbulence grid was used to generate a dispersed bubble flow pattern. The SPRITE technique shows promise for future research in gas-liquid flow.
authors.affiliation: Magnetic Resonance Research Centre, Department of Chemical Engineering & Biotechnology, University of Cambridge, Cambridge, UK.
authors.forename: Mark
authors.initials: M
authors.lastname: Sankey
authors.forename: Zhi
authors.initials: Z
authors.lastname: Yang
authors.forename: Lynn
authors.initials: L
authors.lastname: Gladden
authors.forename: Michael L
authors.initials: ML
authors.lastname: Johns
authors.forename: Derek
authors.initials: D
authors.lastname: Lister
authors.forename: Benedict
authors.initials: B
authors.lastname: Newling
mesh_terms: D000465:Algorithms; D005740:Gases / Q000737:chemistry*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012212:Rheology / Q000379:methods*
chemical_list: D005740:Gases