Fibre agglomerate transport in a horizontal flow

G. M. Cartland Glover, E. Krepper, H. Kryk, F.–P. Weiss, S. Renger, A. Seeliger, F. Zacharias, A. Kratzsch, S. Alt, W. Kästner

Research output: Chapter in Book/Published conference outputConference publication

Abstract

An experimental and theoretical study of the transport of mineral wool fibre agglomerates in nuclear power plant containment sumps is being performed. A racetrack channel was devised to provide data for the validation of numerical models, which are intended to model the transport of fibre agglomerates. The racetrack channel provides near uniform and steady conditions that lead to either
the sedimentation or suspension of the agglomerates. Various experimental techniques were used to determine the velocity conditions and the distribution of the fibre agglomerates in the channel. The fibre agglomerates are modelled as fluid particles in the Eulerian reference frame. Simulations of pure sedimentation of a known mass and volume of agglomerations show that the transport of the fibre agglomerates can be replicated. The suspension of the fibres is also replicated in the simulations; however, the definition of the fibre agglomerate phase is strongly dependent on the selected density and diameter. Detailed information on the morphology of the fibre agglomerates is lacking for the suspension conditions, as the fibre agglomerates may undergo breakage and erosion. Therefore, ongoing work, which is described here, is being pursued to improve the experimental characterisation of the suspended transport of the fibre agglomerates.
Original languageEnglish
Title of host publicationProceedings of the Workshop on CFD for Nuclear Reactor Safety Applications (CF4NRS-3)
Place of PublicationBethesda, Maryland, USA
Publication statusPublished - 14 Sep 2010
EventCFD for Nuclear Reactor Safety Applications - Bethesda, United States
Duration: 14 Sep 201016 Sep 2010

Workshop

WorkshopCFD for Nuclear Reactor Safety Applications
Abbreviated titleCF4NRS-3
Country/TerritoryUnited States
CityBethesda
Period14/09/1016/09/10

Bibliographical note

© and source: OECD

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