Results 31 to 40 of about 466,509 (186)

Computational fluid dynamics-based hull form optimization using approximation method [PDF]

open access: yes, 2017
With the rapid development of the computational technology, computational fluid dynamics (CFD) tools have been widely used to evaluate the ship hydrodynamic performances in the hull forms optimization.
Lai, Yuyang   +4 more
core   +1 more source

Centro-affine hypersurface immersions with parallel cubic form [PDF]

open access: yes, 2013
We consider non-degenerate centro-affine hypersurface immersions in R^n whose cubic form is parallel with respect to the Levi-Civita connection of the affine metric.
Hildebrand, Roland
core   +3 more sources

Two-Term Disjunctions on the Second-Order Cone

open access: yes, 2014
Balas introduced disjunctive cuts in the 1970s for mixed-integer linear programs. Several recent papers have attempted to extend this work to mixed-integer conic programs.
Kilinc-Karzan, Fatma, Yildiz, Sercan
core   +1 more source

The Naples warped hard chine hulls systematic series [PDF]

open access: yes, 2017
An experimental study was carried out to evaluate still water performance of a Systematic Series of hard chine hulls in planing and semiplaning speed range.
DE LUCA, Fabio, Pensa, Claudio
core   +1 more source

Improvement of hull form for an 1,800 TEU containership toward reduced fuel consumption under in-service conditions

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2023
In the present study, the hull form of an 1,800 TEU containership was developed to reduce fuel consumption under real operation conditions. Contrary to the conventional hull form design practice in terms of the calm-sea performance, the hull form design ...
Yurim Cho   +6 more
doaj   +1 more source

Facets of a mixed-integer bilinear covering set with bounds on variables

open access: yes, 2019
We derive a closed form description of the convex hull of mixed-integer bilinear covering set with bounds on the integer variables. This convex hull description is determined by considering some orthogonal disjunctive sets defined in a certain way.
Mahajan, Ashutosh, Rahman, Hamidur
core   +1 more source

Lines optimization of 210 000 DWT bulk carrier based on resistance and wake non-uniformity

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesThis study calculates and analyzes the flow field around the hull of a 210 000 DWT bulk carrier in order to perform hull line optimization with resistance and wake non-uniformity as the optimization objectives.
Baoguo CHENG, Jinfeng HAO, Zhaoxin QIANG
doaj   +1 more source

An hierarchical approach to hull form design [PDF]

open access: yes, 2003
As ship design tools become more integrated and more advanced analysis tools are introduced, the ability to rapidly develop and modify hull forms becomes essential. Modern hull design applications give an experienced user the ability to create almost any
Bole, M., Lee, B.S.
core  

Information Matrix-Based Adaptive Sampling in Hull Form Optimisation

open access: yesJournal of Marine Science and Engineering, 2021
Hull form optimisation involves challenges such as large design spaces, numerous design variables, and high nonlinearity. Therefore, optimisation that only use global approximate models alone cannot yield desirable results.
Xuyu Ouyang   +5 more
doaj   +1 more source

Wave Analysis of Simple Hull Forms

open access: yesJournal of the Society of Naval Architects of Japan, 1969
The resultant of bow and stern waves of Model M 8 (L=2 m), the proto-type of the Series II i. c. the Frameline Series is wave-analyzed.As the preliminary step of analysis, careful investigation is carried out with respect to the probable errors which are involved in the well-known procedure of Newman Sharma's longitudinal cut method.First, Newman's ...
Takao Inui   +3 more
openaire   +2 more sources

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