Measurement of bottom pressures on planing craft

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dc.contributor.author Grigoropoulos, GJ en
dc.contributor.author Damala, DP en
dc.date.accessioned 2014-03-01T02:41:56Z
dc.date.available 2014-03-01T02:41:56Z
dc.date.issued 2001 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30676
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-2942665778&partnerID=40&md5=1f5e45dae476cb56d1a1ce85532235c6 en
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-2942665778&partnerID=40&md5=1f5e45dae476cb56d1a1ce85532235c6 en
dc.subject.other Computer simulation en
dc.subject.other Data reduction en
dc.subject.other Hydrodynamics en
dc.subject.other Mathematical models en
dc.subject.other Pressure effects en
dc.subject.other Pressure transducers en
dc.subject.other Sailing vessels en
dc.subject.other Bottom structure en
dc.subject.other High speed crafts en
dc.subject.other Scantlings en
dc.subject.other Pressure measurement en
dc.title Measurement of bottom pressures on planing craft en
heal.type conferenceItem en
heal.publicationDate 2001 en
heal.abstract The knowledge of the pressures on the bottom of vessels sailing at high speeds is essential for the design bottom plate and its scantlings. However, only a few semi-empirical methods based on scarce full or model scale experimental results can be found in the open literature. The shortage of measured data is partly due to the complexity of the measurements. This kind of data is valuable for validating the proposed analytical methods and for providing background to the rules issued by the classification societies. Two methods are reviewed in this paper to measure the pressure distribution on the bottom of fast ships. In the former, membrane-type pressure sensors are fitted on a grid of points on the bottom of the vessel, while in the latter Pitot-tubes are connected to digital pressure transducer through a 48-channel fluid switch wafer. The pros and cons of both methods, which were tested in the Towing Tank of the Laboratory for Ship and Marine Hydrodynamics of the National Technical University of Athens, are presented and discussed. en
heal.journalName Computational Engineering en
dc.identifier.spage 829 en
dc.identifier.epage 837 en

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