Balci, Adnan

Brøns, Morten

Herrada, Miguel A.

Shtern, Vladimir N.

Adnan Balci

Morten Brøns

Miguel A. Herrada

Vladimir N. Shtern

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European Journal of Mechanics - B/Fluids

Patterns of a slow air–water flow in a semispherical container

This numerical study analyzes the development of eddies in a slow steady axisymmetric air-water flow in a sealed semispherical container, driven by a rotating top disk. As the water height, Hw, increases, new flow cells emerge in both water and air. First, an eddy emerges near the axis-bottom intersection. Then this eddy expands and reaches the interface, inducing a new cell in the air flow. This cell appears as a thin near-axis layer which then expands and occupies the entire air domain. As the disk rotation intensifies at Hw = 0.8, the new air cell shrinks to the axis and disappears. The bulk water circulation becomes separated from the interface by a thin layer of water counter-circulation. These changes in the flow topology occur due to (a) competing effects of the air meridional flow and swirl, which drive meridional motions of opposite directions in water, and (b) feedback of water flow on the air flow. In contrast to flows in cylindrical and conical containers, there is no interaction with Moffatt corner vortices here

Online Research Database In Technology

Patterns of a slow air-water flow in a semispherical container - DTU Orbit (08/11/2017) Patterns of a slow air-water flow in a semispherical containerThis numerical study analyzes the development of eddies in a slow steady axisymmetric air-water flow in a sealedsemispherical container, driven by a rotating top disk. As the water height, Hw, increases, new flow cells emerge in bothwater and air. First, an eddy emerges near the axis-bottom intersection. Then this eddy expands and reaches theinterface, inducing a new cell in the air flow. This cell appears as a thin near-axis layer which then expands and occupiesthe entire air domain. As the disk rotation intensifies at Hw = 0.8, the new air cell shrinks to the axis and disappears. Thebulk water circulation becomes separated from the interface by a thin layer of water counter-circulation. These changes inthe flow topology occur due to (a) competing effects of the air meridional flow and swirl, which drive meridional motions ofopposite directions in water, and (b) feedback of water flow on the air flow. In contrast to flows in cylindrical and conicalcontainers, there is no interaction with Moffatt corner vortices here. General informationState: PublishedOrganisations: Department of Applied Mathematics and Computer Science , Mathematics , Office for Study Programmesand Student Affairs, Universidad de Sevilla, Shtern Research and ConsultingAuthors: Balci, A. (Intern), Brøns, M. (Intern), Herrada, M. A. (Ekstern), Shtern, V. N. (Ekstern)Pages: 1-8Publication date: 2016Main Research Area: Technical/natural sciences Publication informationJournal: European Journal of Mechanics B - FluidsVolume: 58ISSN (Print): 0997-7546Ratings: BFI (2017): BFI-level 1 Web of Science (2017): Indexed yes BFI (2016): BFI-level 1 Scopus rating (2016): SJR 0.808 SNIP 1.416 CiteScore 2.07 Web of Science (2016): Indexed yes BFI (2015): BFI-level 1 Scopus rating (2015): SJR 0.8 SNIP 1.46 CiteScore 1.75 BFI (2014): BFI-level 1 Scopus rating (2014): SJR 0.788 SNIP 1.63 CiteScore 1.8 BFI (2013): BFI-level 1 Scopus rating (2013): SJR 0.87 SNIP 1.558 CiteScore 1.79 ISI indexed (2013): ISI indexed yes BFI (2012): BFI-level 1 Scopus rating (2012): SJR 0.954 SNIP 1.655 CiteScore 1.86 ISI indexed (2012): ISI indexed yes Web of Science (2012): Indexed yes BFI (2011): BFI-level 1 Scopus rating (2011): SJR 0.741 SNIP 1.526 CiteScore 1.61 ISI indexed (2011): ISI indexed yes BFI (2010): BFI-level 1 Scopus rating (2010): SJR 0.959 SNIP 1.484 BFI (2009): BFI-level 1 Scopus rating (2009): SJR 1.121 SNIP 1.534 BFI (2008): BFI-level 1 Scopus rating (2008): SJR 0.917 SNIP 1.348 Scopus rating (2007): SJR 0.943 SNIP 1.151 Scopus rating (2006): SJR 1.227 SNIP 1.4 Scopus rating (2005): SJR 1.348 SNIP 1.416 Web of Science (2005): Indexed yes Scopus rating (2004): SJR 0.888 SNIP 1.284 Scopus rating (2003): SJR 1.182 SNIP 0.805 Scopus rating (2002): SJR 0.972 SNIP 1.057 Scopus rating (2001): SJR 1.806 SNIP 1.083 Web of Science (2001): Indexed yes Scopus rating (2000): SJR 1.206 SNIP 0.854 Scopus rating (1999): SJR 1.077 SNIP 0.905 Original language: EnglishSwirling motions, Two-fluid flows, Viscous incompressible fluids, Sealed container, Changes in flow topologyDOIs: 10.1016/j.euromechflu.2016.03.004 Source: FindItSource-ID: 2303146024Publication: Research - peer-review › Journal article – Annual report year: 2016 

Patterns of a slow air-water flow in a semispherical container

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Patterns of a slow air-water flow in a semispherical container

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Online Research Database In Technology