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dc.contributor.authorVestbøstad, Tone M.nb_NO
dc.date.accessioned2014-12-19T12:05:26Z
dc.date.available2014-12-19T12:05:26Z
dc.date.created2010-01-05nb_NO
dc.date.issued2009nb_NO
dc.identifier284276nb_NO
dc.identifier.isbn978-82-471-1697-5 (printed ver.)nb_NO
dc.identifier.urihttp://hdl.handle.net/11250/237692
dc.description.abstractA Constrained Interpolation Profile method following Hu and Kashiwagi (2004) is developed for wave impact applications. Two-dimensional, unsteady, viscous and incompressible flow is assumed. The numerical model is a finite difference high-order up-wind scheme for solving the Navier.Stokes equations. A domainembedding, staggered Cartesian grid is used for the spatial discretization. The water and air phases are modeled as one fluid. The material properties vary across the domain, and the free surface is modeled as a layer rather than a sharp interface. Different surface capturing schemes based on density functions are tested. Benchmark tests focusing on marine applications are used to develop the code and demonstrate the capabilities and limitations of the method. A numerical wave tank is developed and validated using both higher order wave theory and experimental results from physical wave tanks. Progressive, regular waves are simulated. Wave impact simulations are performed for a simplfied, fixed deck structure. Horizontal and vertical global forces are computed. Different combinations of wave height, wave period and airgap are used in the simulations. The impact process is studied. Parameter studies for wave crest variation and airgap changes are performed. Results are compared with existing experimental results. The global loading process for multiple impacts on the deck box is discussed using both numerical and experimental results.nb_NO
dc.languageengnb_NO
dc.publisherNorges teknisk-naturvitenskapelige universitet, Fakultet for ingeniørvitenskap og teknologi, Institutt for marin teknikknb_NO
dc.relation.ispartofseriesDoktoravhandlinger ved NTNU, 1503-8181; 2009:153nb_NO
dc.titleA Numerical Study of Wave-in-Deck Impact using a Two-dimensional Constrained Interpolation Profile Methodnb_NO
dc.typeDoctoral thesisnb_NO
dc.contributor.departmentNorges teknisk-naturvitenskapelige universitet, Fakultet for ingeniørvitenskap og teknologi, Institutt for marin teknikknb_NO


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