Escort tug performance prediction: a CFD method

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dc.contributor.authorSmoker, Brendan
dc.contributor.supervisorOshkai, Peter
dc.date.accessioned2012-12-20T19:31:52Z
dc.date.available2012-12-20T19:31:52Z
dc.date.copyright2012en_US
dc.date.issued2012-12-20
dc.degree.departmentDept. of Mechanical Engineeringen_US
dc.degree.levelMaster of Applied Science M.A.Sc.en_US
dc.description.abstractAs the demand for energy continues to increase around the world, more vessels used in the transport of energy, such as Liquid Natural Gas (LNG) and crude oil tankers are being built to transport energy to market overseas. The escort tug has been developed in order to assist in the safe transit of such vessels in confined waterways. Designed to apply emergency braking and steering forces to the stern of a tanker while underway, an escort tug features a hull shape that generates large hydrodynamic lift and drag forces when operating at high angles of attack, this is known as indirect mode. This escorting mode is highly effective at speeds 8 knots and above, often generating towline forces well in excess of bollard pull. Escort performance prediction is a vital aspect of the design of escort tugs. It is important to know a priori if a design will meet the necessary performance criteria. In the past, performance predictions have relied heavily on model testing and empirical methods. With the recent emergence of Computational Fluid Dynamics (CFD) as a commercially viable design tool for naval architects, extensive escort performance predictions can now be carried out more accurately in less time and at less cost than was previously possible. This thesis describes the methodology of a CFD based escort performance prediction method that is accurate and cost effective.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/4380
dc.languageEnglisheng
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectmarineen_US
dc.subjectscaling effectsen_US
dc.subjectturbulenceen_US
dc.subjectITTCen_US
dc.subjectindirect modeen_US
dc.subjectindirect escorten_US
dc.subjectindirect steeringen_US
dc.subjectindirect brakingen_US
dc.subjecttransverse arresten_US
dc.subjectASDen_US
dc.subjecttankeren_US
dc.subjectoil safetyen_US
dc.subjectstapleen_US
dc.subjectskegen_US
dc.subjectZ-driveen_US
dc.subjectbollard pullen_US
dc.subjectescort butterfly ploten_US
dc.subjectSTAR-CCM+en_US
dc.subjectNSERCen_US
dc.titleEscort tug performance prediction: a CFD methoden_US
dc.typeThesisen_US

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