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Unsteady-laminar to turbulent flow in a spacer-filled channel

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2130
pages 2063-2070

S. M. Mojab
Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada

Andrew Pollard
Department of Mechanical and Materials Engineering, Queen's University, Kingston, Ontario Canada K7L 3N6

Jon. G. Pharoah
Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada

Steven B. Beale
Institute of Energy and Climate Research, IEK-3 Forschungszentrum Jülich GmbH 52425 Jülich, Germany

Ernest S. Hanff
National Research Council of Canada, Ottawa, Canada


A combined numerical and experimental investigation have been carried out to study the flow behaviour in a spacer-filled channel, representative of those used in spiral-wound membrane modules. The fluid flow characteristics are presented for Reynolds numbers, ranging from 100 to 1000. It was found that the flow in this particular geometry moves parallel to the spacer filaments. Swirl-like motions (secondary flow) were observed in the main flow streams. The flow mechanisms, transition process and onset of turbulence in a spacer-filled channel are investigated, using the velocity spectra at different Reynolds numbers.

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