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Research Of Non-smooth Surface Texture’s Effect On Marine Fouling Organisms

Posted on:2015-09-30Degree:MasterType:Thesis
Country:ChinaCandidate:R G WangFull Text:PDF
GTID:2272330452950606Subject:Marine Engineering
Abstract/Summary:PDF Full Text Request
The presence of marine fouling organisms on ship operation, maintenance andother activities have a tremendous impact. Attached to the hull surface fouling causedby the ship load increases, increased fuel consumption, maintenance difficulties andother problems, if left unchecked, will seriously affect the performance of the ship,causing huge economic losses.The traditional method is generally anti-fouling releaseof heavy metal ions by antifouling paint or toxic chemicals to suppress or eliminatefouling organisms.Although this can effectively reduce the adhesion of foulingorganisms, but also caused serious environmental pollution.As environmental issuesbecome increasingly prominent, gradually eliminated the toxic paint, new greennon-toxic, safe and efficient means is the development direction of the anti-foulingmarine fouling.The effect of non-smooth surface for attachment of fouling organisms is veryobvious, paper processing by machining and grinding of the different methods ofartificial surface roughness and contact angle steel specimens, chosen as the targetplume Navicula diatoms, and its laboratory culture methods, culture conditions, madeelaborate security methods.To verify the effect of surface parameters on the adhesionof fouling organisms, static immersion experiments conducted under laboratoryconditions, erosion experiments, counting a series of experiments experimental work,through comparative analysis to determine the contact angle is the impact of foulingorganisms attached major factor.After determining the contact angle is a major factor in the impact of foulingorganisms attached to the design of a surface microstructure that is V-groove, selectthe plexiglass plate as the processing of materials, the use of laser etching apparatusfor processing, after obtaining the test plate attached to the experiment by havingverified the antifouling effect, but due to processing conditions, in the V-groove tooptimize the scale, mathematical modeling method selected in the contact angle as afunction of the groove width, groove depth, groove pitch as since not amount,respectively, using a linear modeling and nonlinear modeling method to establish the accuracy of the model, comparison of the model, the final choice ofnonlinear model as described mathematical model V-groove optimization.
Keywords/Search Tags:Roughness, Contact angle, Diatoms, V-groove
PDF Full Text Request
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