Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/5590
Title: A BEM-isogeometric method with application to the wavemaking resistance problem of surface piercing and fully submerged bodies
Authors: Μπελιμπασάκης, Κωνσταντίνος Α.
Γεροστάθης, Θεόδωρος
Κώστας, Κωνσταντίνος
Πολίτης, Κωνσταντίνος
Κακλής, Παναγιώτης Δ.
Contributors: Γκίνης, Αλέξανδρος - Αλβέρτος
Feurer, C.
Item type: Conference publication
Conference Item Type: Full Paper
Keywords: Isogeometric analysis;Integral equation;Wave resistance (Hydrodynamics);Geometry in architecture;Marine design;Ισογεωμετρική ανάλυση;Ολοκληρωτική εξίσωση;Θαλάσσιος σχεδιασμός;Αντίσταση κύματος;Γεωμετρία στην αρχιτεκτονική
Subjects: Marine engineering
Shipbuilding
Ναυτιλία
Ναυπηγική
Issue Date: 3-Feb-2015
12-Mar-2012
Abstract: In the present work IsoGeometric Analysis (IGA), initially proposed by Hughes et al (2005), is applied to the solution of the boundary integral equation associated with the Neumann- Kelvin (NK) problem and the calculation of the wave resistance of ships, following the formulation by Brard (1972) and Baar & Price (1988). As opposed to low-order panel methods, where the body is represented by a large number of quadrilateral panels and the velocity potential is assumed to be piecewise constant (or approximated by low degree polynomials) on each panel, the isogeometric concept is based on exploiting the NURBS basis, which is used for representing exactly the body geometry and adopts the very same basis functions for approximating the singularity distribution (or in general the dependent physical quantities). In order to examine the accuracy of the present method, in a previous paper Belibassakis et al (2009), numerical results obtained in the case of submerged bodies are compared against analytical and benchmark solutions and low-order panel method predictions, illustrating the superior efficiency of the isogeometric approach. In the present paper we extent previous analysis to the case of wavemaking resistance problem of surface piercing bodies. The present approach, although focusing on the linear NK problem which is more appropriate for thin ship hulls, it carries the IGA novelty of integrating CAD systems for shiphull design with computational hydrodynamics solvers.
Language: English
Citation: Politis, C.G., Belibassakis, K.A., Kostas, K.V., Gerosthathis, Th.P., Kaklis, P.D., et al. (2012). A BEM-isogeometric method with application to the wavemaking resistance problem of surface piercing and fully submerged bodies. in IGAA 2012, Isogeometric Analysis and Applications, 12-16/03/2012, Linz, Austria
Conference: Isogeometric Analysis and Applications
Access scheme: Embargo
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/5590
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