Role of Local Flow Conditions in River Biofilm Colonization and Early Growth

Direct numerical simulations of a turbulent boundary layer flow over a bed of hemispheres of height h are performed using an immersed boundary method for comparison with river biofilm growth experiments performed in a hydraulic flume. Flow statistics above the substrates are shown to be in agreement...

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Veröffentlicht in:	River research and applications 2015-03, Vol.31 (3), p.350-367
Hauptverfasser:	Coundoul, F, Bonometti, T, Graba, M, Sauvage, S, Sanchez Pérez, J.‐M, Moulin, F. Y
Format:	Artikel
Sprache:	eng
Schlagworte:	biofilm Biofilms biomass Boundary layer Boundary layers canopy flow Colonization Computational fluid dynamics Engineering Sciences Experiments Flow velocity Fluid flow Fluids mechanics friction Hemispheres inoculum Kinematic viscosity Local flow Mechanics Reynolds number river biofilm Rivers roughness roughness sublayer Shear stress statistics Topology Turbulence turbulent boundary layer Turbulent flow viscosity
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