Pressure-driven flow in a two-dimensional channel with porous walls

Quan Zhang, Andrea Prosperetti

Research output: Contribution to journalArticleAcademicpeer-review

24 Citations (Scopus)


The finite-Reynolds-number two-dimensional flow in a channel bounded by a porous medium is studied numerically. The medium is modelled by aligned cylinders in a square or staggered arrangement. Detailed results on the flow structure and slip coefficient are reported. The hydrodynamic force and couple acting on the cylinder layer bounding the porous medium are also evaluated as a function of the Reynolds number. In particular, it is shown that, at finite Reynolds numbers, a lift force acts on the bodies, which may be significant for the mobilization of bottom sediments.s
Original languageEnglish
Pages (from-to)1-21
Number of pages21
JournalJournal of fluid mechanics
Publication statusPublished - 2009


  • METIS-263536


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