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Investigation of sediment transport at the interface of a porous and a free flow domain
Author(s) -
Reisner Timo,
Steeb Holger,
Renner Joerg
Publication year - 2012
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201210253
Subject(s) - flow (mathematics) , porosity , porous medium , geology , mechanics , newtonian fluid , sediment transport , sediment , fluid dynamics , open channel flow , domain (mathematical analysis) , geotechnical engineering , materials science , physics , geomorphology , mathematical analysis , mathematics
Sediment transport involves fluid flow in two different regions. In the free flow domain, the flow is governed by the viscous Newtonian fluid; sediment only occurs as suspended particles. In the porous domain however, the flow is governed by the pore geometry of the porous skeleton consisting of sedimented grains. In nature, the interface between these two domains is not a no‐slip boundary for the free flow. In this study, we quantify how sediment transport is affected by the interaction of the two different flows. We do this by comparing fluid flow in no‐slip bounded flow channels to fluid flow in channels containing both a free and a porous domain. (© 2012 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)