Predictive study of condensing vapour bubble in subcooled boiling flow using intersection marker method

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dc.contributor.authorSharif, SAen_AU
dc.contributor.authorTimchenko, Ven_AU
dc.contributor.authorHo, Men_AU
dc.contributor.authorYeoh, GHen_AU
dc.date.accessioned2024-01-11T03:33:38Zen_AU
dc.date.available2024-01-11T03:33:38Zen_AU
dc.date.issued2019-08-18en_AU
dc.date.statistics2023-07-04en_AU
dc.descriptionMark Ho is listed on this article as Mark Kai Ming Ho. In APO Mark is listed as Ho, Men_AU
dc.description.abstractThe InterSection Marker (ISM) method, a hybrid Lagrangian-Eulerian numerical method which can model an arbitrary 3D surface within an array of cubic control-volumes, was explicitly devised to simulate multiphase phenomena, such as bubbly flows. In this work, the ISM method was used to simulate single vapour bubble condensation in a vertical rectangular channel in subcooled boiling flow condition. The vapour bubble was condensing while rising in quiescent water under the influence of the buoyancy and the surface tension forces. Coupling between the ISM interface tracking method and an in-house variable-density and variable-viscosity single-fluid flow solver was achieved by means of the immersed boundary method. In order to simulate the condensing bubble, the source terms were modelled in the CFD governing equations to account for heat and mass transfers from the bubble. During the simulation, the condensing bubble properties such as bubble history, shape, and velocity were predicted for various initial bubble sizes and liquid subcooling values. The results obtained from the ISM simulation were then compared against the past works and found to be in good agreement. The interfacial (convective) heat transfer coefficient depends on the bubble velocity. As such, bubble velocity as well as liquid subcooling play an important role in the bubble condensation rate. Bubble deforms at a higher rate for larger bubble sizes. With the increase of liquid subcooling, rise velocity of the condensing bubble decreases for continuous loss of mass (reduced buoyancy force) and for deformed bubble shape (increasing drag force). © The Authors.en_AU
dc.identifier.citationSharif, S. A., Ming Ho, M. K., Timchenko, V., & Yeoh, G. H. (2019). Predictive study of condensing vapour bubble in subcooled boiling flow using intersection marker method. Paper presented to the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019, Portland, Oregon. In Proceedings of the 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 2019), (pp. 112-126). Retrieved from: https://www.ans.org/pubs/proceedings/article-46054/en_AU
dc.identifier.conferenceenddate2019-08-23en_AU
dc.identifier.conferencename18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 2019)en_AU
dc.identifier.conferenceplacePortland, Oregenen_AU
dc.identifier.conferencestartdate2019-08-18en_AU
dc.identifier.pagination112-126en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15316en_AU
dc.language.isoenen_AU
dc.publisherAmerican Nuclear Societyen_AU
dc.relation.urihttps://www.ans.org/pubs/proceedings/article-46054/en_AU
dc.subjectBubblesen_AU
dc.subjectBoilingen_AU
dc.subjectHeaten_AU
dc.subjectSizeen_AU
dc.subjectLiquidsen_AU
dc.subjectSubcoolingen_AU
dc.subjectShapeen_AU
dc.subjectControlen_AU
dc.subjectVolumeen_AU
dc.subjectSimulationen_AU
dc.subjectHeat transferen_AU
dc.subjectDragen_AU
dc.titlePredictive study of condensing vapour bubble in subcooled boiling flow using intersection marker methoden_AU
dc.typeConference Abstracten_AU
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