eCite Digital Repository (University of Tasmania) · 2008 · 11 citations · 9 references
EngineeringBioengineeringEnvironmental EngineeringBiological Transport PhenomenaFreshwater EcologyWater Resources EngineeringAquatic Microbial EcologyBiofilm FormationBiofilms In Aquatic SystemsBiofluid MechanicsFlow - Ecology RelationshipsMicrobial BiofilmsAlgal BiofilmsBiofilm HydrodynamicsFreshwater BiofilmsFriction CoefficientSkin FrictionSkin-friction CoefficientSkin-friction DragTurbulent Boundary Layers
Abstract:- Freshwater biofilms are currently being studied to determine their effect on the capacity of hydroelectric power scheme canals and the structure of their turbulent wall layers. Mean velocity boundary layer profiles and total drag measurements have been conducted in a purpose built recirculating water tunnel on freshwater biofilms grown in a hydroelectric canal. Two different fouled surfaces were compared with a smooth painted surface to determine the effects of the physical characteristics of a biofilm on skin friction drag. A 310 % increase in local skin friction coefficient was measured for a biofilm dominated by long filamentous algae streamers, and a 50 % increase was measured for a biofilm dominated by a low-form gelatinous diatom.
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Rough wall turbulent boundary layers
A. E. Perry, W. H. Schofield, P. N. Joubert · Journal of Fluid Mechanics · 1969 · 624 citations
MINIREVIEW—THE FIRST KISS: ESTABLISHMENT AND CONTROL OF INITIAL ADHESION BY RAPHID DIATOMS
Richard Wetherbee, Jan Lind, Jo Burke et al. · Journal of Phycology · 1998 · 245 citations