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  Evaluation of Hydrodynamic Drag on Experimental Fouling-release Surfaces, using Rotating Disks
 
 
Titel: Evaluation of Hydrodynamic Drag on Experimental Fouling-release Surfaces, using Rotating Disks
Auteur: Holm, Eric
Schultz, Michael
Haslbeck, Elizabeth
Talbott, Walter
Field, Andrew
Verschenen in: Biofouling
Paginering: Jaargang 20 (2004) nr. 4-5 pagina's 219-226
Jaar: 2004
Inhoud: Fouling by biofilms significantly increases frictional drag on ships' hulls. A device, the friction disk machine, designed to measure torque on rotating disks, was used to examine differences among experimental fouling-release coatings in the drag penalty due to accumulated biofilms. Penalties were measured as the percentage change in the frictional resistance coefficient Cf. Drag penalties due to microfouling ranged from 9% to 29%, comparable to previously reported values. An antifouling control coating showed a smaller drag penalty than the fouling-release coatings. There were also significant differences among the fouling-release coatings in drag due to biofilm formation. These results indicate that the friction disk machine may serve as a valuable tool for investigating the effects of experimental coatings, both antifouling and fouling-release, on microfouling and associated drag penalties.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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