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Analysis Of The Onset Of Dryout Conditions In Diabatic Annular Two-Phase Flows
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0001-5595-1952
2012 (English)In: Proceedings Of The 20th International Conference On Nuclear Engineering And The ASME 2012 Power Conference - 2012, Vol 3, 2012, 627-630 p.Conference paper (Refereed)
Abstract [en]

An analysis is presented that predicts the conditions which allow for a formation of a stable dry patch in diabatic annular two phase flows. The analysis employs a force balance formulated for the leading edge of the liquid film In addition to stagnation, thermo-capillary and vapor thrust forces, the analysis includes effects of the pressure gradient and the interfacial shear stress. It is shown that the equilibrium conditions of a dry patch are dominated by the stagnation force, the surface tension force, the capillary force and the skin drag force. For high heat flux conditions only the first three forces are important.

Place, publisher, year, edition, pages
2012. 627-630 p.
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-131738ISI: 000324152900074ScopusID: 2-s2.0-84890104307ISBN: 978-0-7918-4497-7OAI: diva2:656796
0th International Conference on Nuclear Engineering and the ASME 2012 Power Conference (ICONE20-POWER2012) Location: Anaheim, CA Date: Jul 30-Aug 03, 2012

QC 20131017

Available from: 2013-10-17 Created: 2013-10-17 Last updated: 2013-10-17Bibliographically approved

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