Modelling of underwater bubble plumes and gas dissolution with an Eulerian-Lagrangian CFD model |
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| Institution: | 1. Department of Mathematics, City University of New York, College of Staten Island, 2800 Victory Boulevard, Staten Island, New York, NY 10314, United States;2. Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149-1098, United States;3. Earth, Ocean and Atmospheric Science, Florida State University, P.O. Box 3064520, Tallahassee, FL 32306-4520, United States |
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| Abstract: | Underwater bubble plumes emerge from subsea releases of gas. They can be studied by mathematical models. Here an Eulerian-Lagrangian CFD model is presented. It accounts for relevant physics including buoyancy, turbulence, gas expansion and gas dissolution. The model is compared against three sets of experiments. There is consistency between model and experiments. Special focus is given to the effect of gas dissolution. It is demonstrated how the choice of mass transfer coefficient strongly affects the amount of gas dissolution. Since it is not apparent which mass transfer correlation is applicable, it is argued that more experimental data is needed. |
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| Keywords: | Bubble plumes Subsea gas release Modelling CFD |
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