Water tank measurements of buoyant plume rise and structure in neutral crossflows |
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Institution: | 1. Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada;2. Dipartimento di Ingegneria Civile, Università della Calabria, Rende, CS, Italy;1. Department of Earth Science and Engineering, South Kensington Campus, Imperial College London, SW7 2AZ, United Kingdom;2. Qatar Carbonates and Carbon Storage Research Centre, Imperial College London, United Kingdom |
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Abstract: | In this paper, an experimental study of the rise and development of a single buoyant plume and a pair of in-line buoyant plumes is presented. The investigations were carried out at small scale in a water filled towing tank using both quantitative flow visualisation and local concentration measurements. The measured plume trajectories for a single plume were compared with the Briggs plume rise equation and predictions from a numerical integral model. Plume trajectories were studied for twin in-line plumes, with particular attention to changes in the plume trajectory, especially any additional rise that resulted from the interaction between the two plumes. Concentration field distributions in cross-sections through both single and interacting twin plumes were obtained from the local concentration measurement system. These showed how the interaction affected the plume structure, notably the double vortex system that occurs in a fully developed plume. |
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