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Shape-optimization of 2D hydrofoils using an Isogeometric BEM solver

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dc.contributor.author Konstantinos, Kostas
dc.contributor.author Ginnis, A.I.
dc.contributor.author Politis, C.G.
dc.contributor.author Kaklis, P.D.
dc.date.accessioned 2016-11-25T08:32:05Z
dc.date.available 2016-11-25T08:32:05Z
dc.date.issued 2016-06-29
dc.identifier.citation K.V. Kostasa, A.I. Ginnisb, C.G. Politisc, P.D. Kaklis; 2016; Shape-optimization of 2D hydrofoils using an Isogeometric BEM solver; Computer-Aided Design; http://nur.nu.edu.kz/handle/123456789/1938 ru_RU
dc.identifier.uri http://nur.nu.edu.kz/handle/123456789/1938
dc.description.abstract In this paper, an optimization procedure, based on an Isogeometric BEM solver for the potential ow, is developed and used for the shape optimization of hydrofoils. The formulation of the exterior potential- ow problem reduces to a Boundary-Integral Equation (BIE) for the associated velocity potential exploiting the null-pressure jump Kutta condition at the trailing edge. The numerical solution of the BIE is performed by an Isogeometric Boundary-Element Method (BEM) combining a generic B-splines parametric modeler for generating hydrofoil shapes, using a set of eight parameters, the very same basis of the geometric representation for representing the velocity potential and collocation at the Greville abscissas of the knot vector of the hydrofoil's B-splines representation. Furthermore, the optimization environment is developed based on the geometric parametric modeler for the hydrofoil, the Isogeometric BEM solver and an optimizer employing a controlled elitist genetic algorithm. Multi-objective hydrofoil shape optimization examples are demonstrated with respect to the criteria i) maximum lift coefficient and ii) minimum deviation of the hydrofoil area from a reference area. ru_RU
dc.language.iso en ru_RU
dc.publisher Computer-Aided Design. Elsevier ru_RU
dc.rights Attribution-NonCommercial-ShareAlike 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/3.0/us/ *
dc.subject Isogeometric Analysis ru_RU
dc.subject NURBS ru_RU
dc.subject Potential Flows ru_RU
dc.subject Lifting Flows ru_RU
dc.subject Shape optimization ru_RU
dc.title Shape-optimization of 2D hydrofoils using an Isogeometric BEM solver ru_RU
dc.type Article ru_RU

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