Biofouling control: a microfluidic assessment of patterned surfaces

dc.contributor.authorHalder, P
dc.contributor.authorBhuiyan, M
dc.contributor.authorJayasuriya, N
dc.date.accessioned2013-11-12T19:28:53Z
dc.date.available2013-11-12T19:28:53Z
dc.date.issued2013-11-13
dc.description.abstractBiofouling, by the sessile growth of microorganisms onto submerged surfaces, presents a serious problem for underwater structures. While biofouling can be controlled to various degrees with different patterned surfaces, the underlying mechanisms are still imprecise. Since long researchers are speculating that microtopographies might influence surface-near microfluidic conditions and thus micro-hydrodynamically preventing microorganism settlement. It is therefore very important to identify the microfluidic environment developed on patterned surfaces and its relation with antifouling behavior of those surfaces. This study considered the wall shear stress distribution pattern of microtopographies as a significant aspect of this microfluidic environment. Though the requirement of effective shear stress is quite low for removing microorganisms at their early stage of attachment, still the development of this critical shear stress is limited due to inadequate inertial forces in the viscous dominated sublayer. So in this study, patterned surfaces were analyzed in the perspective of developing critical microfluidic shear stress with specific distribution pattern to inhibit the gregariousness of microorganisms. A shape comparison of patterned surfaces with equivalent roughness geometries was carried out using CFD simulations. Finally, the study pointed out some geometrical features of a patterned surface and related fluid flow conditions to be considered while selecting the surface for biofouling control.en_US
dc.identifier.conferenceICSBE-2012: International Conference on Sustainable Built Environmenten_US
dc.identifier.emails3317121@student.rmit.edu.auen_US
dc.identifier.emailmuhammed.bhuiyan@rmit.edu.auen_US
dc.identifier.emailNira.Jayasuriya@rmit.edu.auen_US
dc.identifier.placeKandy, Sri Lankaen_US
dc.identifier.urihttp://dl.lib.mrt.ac.lk/handle/123/9053
dc.identifier.year2012en_US
dc.language.isoenen_US
dc.subjectbiofoulingen_US
dc.subjectCFD simulationen_US
dc.subjectpatterned surfaceen_US
dc.subjectmicrofluidic approachen_US
dc.subjectwall shear stressen_US
dc.titleBiofouling control: a microfluidic assessment of patterned surfacesen_US
dc.typeConference-Full-texten_US

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