Towards a CFD model for boiling flows: validation of QMOM predictions with TOPFLOW experiments
dc.contributor.author | Buffo, Antonio | |
dc.contributor.author | Vanni, Marco | |
dc.contributor.author | Marchisio, Daniele L. | |
dc.contributor.author | Montoya, Gustavo | |
dc.contributor.author | Baglietto, Emilio | |
dc.date.accessioned | 2018-01-28T13:35:45Z | |
dc.date.available | 2018-01-28T13:35:45Z | |
dc.date.issued | 2017 | |
dc.identifier.isbn | 978-82-536-1544-8 | |
dc.identifier.issn | 2387-4295 | |
dc.identifier.uri | http://hdl.handle.net/11250/2480033 | |
dc.description.abstract | Boiling flows are very complex systems, usually confined in vertical pipes, where the liquid water moving upwards and the steam gas bubbles generated at the walls. The fluid dynamics of such systems is determined by the interplay of many different phenomena, including bubble nucleation, growth, condensation, coalescence, and breakage. For this reason, the development of a fully predictive computational fluid dynamics (CFD) model is very challenging, therefore we focus here only on some of the phenomena mentioned above (i.e. coalescence and breakage) by using population balance models (PBM). In this work, a coupled CFD-PBM model based on the two-fluid model and the quadrature method of moments (QMOM) was implemented in the open-source CFD code openFOAM. Simulation predictions obtained with this methodology are compared against the so-called TOPFLOWexperiments for the first time, where simpler air-water cold systems that mimic the complexity of real boiling flows were investigated. Comparison between the available experimental data and the results show that great care must be paid on some modeling details, such as the inlet bubble size distribution (BSD) at the sparger and the coalescence and breakage rates modeling. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | SINTEF Academic Press | nb_NO |
dc.relation.ispartof | Proceedings of the 12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries | |
dc.relation.ispartofseries | SINTEF Proceedings;2 | |
dc.subject | Top-flow experiments | nb_NO |
dc.subject | Boiling flow | nb_NO |
dc.subject | Coalescence | nb_NO |
dc.subject | Computational Fluid Dynamics | nb_NO |
dc.subject | Population Balance Model | nb_NO |
dc.subject | Gas-liquid flows | nb_NO |
dc.subject | Breakage | nb_NO |
dc.subject | Lift force | nb_NO |
dc.title | Towards a CFD model for boiling flows: validation of QMOM predictions with TOPFLOW experiments | nb_NO |
dc.type | Chapter | nb_NO |
dc.type | Conference object | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.subject.nsi | VDP::Technology: 500 | nb_NO |
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