Research on theoretical optimization and experimental verification of minimum resistance hull form based on Rankine source method

Zhang, Bao-Ji; Zhang, Zhu-Xin

doi:10.1515/ijnaoe-2015-0055

Cited by 11 publications

(12 citation statements)

References 5 publications

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“…The Rankine sources method is based on the potential-flow without considering viscosity. Nevertheless, for a sophisticated shiphull optimization system, it is more simple and convenient and has been proved to be accurate, reliable, and efficient, so it has been investigated in various studies (Abt and Harries et al [23], Lu, Chang, and Hu [24], Lowe and Steel [25], Suzuki, Kai, and Kashiwabara [26], Zhang, Kun, and Ji [27], Zhang [28], Chi, Huang, and Noblesse [29], Choi, Park, and Choi [30], and Chi, Huang, and Kim [31]).…”

Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Hydrodynamic Design Study on Ship Bow and Stern Hull Form Synchronous Optimization Covering Whole Speeds Range

Chang

Yin

et al. 2019

Mathematical Problems in Engineering

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The main objective of this article is to describe an innovative methodology of synchronous local optimization which considers the whole ship speed range being presented for a KRISO Container Ship (KCS). Parametric form approaches are adopted by employing a fairing B-spline curve in order to generate variants of the bow and stern of forms using form design parameters modified, resulting in an optimization system based on NSGA-II. The total resistance is calculated by the Rankine source panel method and the empirical formula which agrees well with the corresponding experimental data and further acquires validation with the overall error of 2.0%. Accordingly, the ship forepart and stern form have been optimized under conditions of the single design speed and whole speeds range based on the considerations of generally distributed and variable operational speeds for the operating characteristics of modern container ships synchronously. The optimized result presents well-balanced drag reduction benefits which averagely remain above 4.0% of ship resistance decrease. Compared to the traditional optimization process which is based on a specific design speed, the newly developed method is more practical and effective in both automation and integration.

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Section: Mathematical Problems In Engineeringmentioning

confidence: 99%

Hydrodynamic Design Study on Ship Bow and Stern Hull Form Synchronous Optimization Covering Whole Speeds Range

Chang

Yin

et al. 2019

Mathematical Problems in Engineering

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“…Up to now, many optimisation of laminated composites. Many mathematical programming methods are also employed to solve the optimisation problem, such as Sequence Quadratic Program (SQP) method (Gill et al, 2002;Yu and Lee, 2016) and Non-Linear Programming (NLP) method (Zhang, 2009;Zhang and Zhang, 2015). Serani et al (2016) pointed out that if the research region is known a priori, local optimisation algorithms can also obtain an accurate solution of the local minimum.…”

Section: Fig 1 Sbd Based Ship Hull Form Optimisation Frameworkmentioning

confidence: 99%

An investigation into fishing boat optimisation using a hybrid algorithm

et al. 2018

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The optimisation of high-speed fishing boats is different from the optimisation of other displacement type vessels as, for high-speed fishing boats, the wave-making resistance decreases while the splashed resistance increases sharply. To reduce fuel consumption and operating costs in the current economic climate, this paper presents a fishing boat optimisation approach using a Computational Fluid Dynamics (CFD) technique. The RANS-VoF solver was utilised to calculate total resistance, sinkage and trim for a fishing boat in calm water. The Arbitrary Shape Deformation (ASD) technique was used to smoothly alter the geometry. A hybrid algorithm was presented to solve the complicated nonlinear optimisation problem. Herein, a Design of Experiments (DoE) method was applied to find an optimal global region and a mathematical programme was employed to determine an optimal global solution. Under the same displacement with the original hull, two optimisation loops were built with different design variables. After completion of the optimisation, two optimal hull forms were obtained. The optimisation results show that the optimisation loop presented in this study can be used to design a suitable fishing boat in the reduction of the total resistance in calm water.

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“…The Rankine source method and Reynolds Averaged Navier Stokes (RANS) based viscous flow methods are potential flow panel methods that were developed in several studies with quite advanced techniques. The Rankine source method is considered fast, efficient, and highly precise in potential flow theory, e.g., Rankine source method with the optimization algorithm Nonlinear Programming Method (NLP) in monohull (Zhang and Zhang, 2015) and multihull optimization (Von Graefe et al, 2013;Von Graefe et al, 2015). The Michell integral method or thin ship theory is considered a more straightforward and faster CFD method (Tuck and Lazauskas, 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Two simple tools based on Michell's theory were quite applicable for investigating resistance performance and optimization (Sulistyawati et al, 2020b;Sulistyawati et al, 2020c). The results were compared with the Rankine source method (Zhang and Zhang, 2015). The Godzilla optimization tool (Lazauskas, 1996) and Flotilla (Lazauskas, 1999) were used for the optimization of the resistance components and contour of the wave elevation.…”

Section: Introductionmentioning

confidence: 99%

Achieving Drag Reduction with Hullform Improvement in Different Optimizing Methods

Sulistyawati¹,

Suranto²

2020

IJTech

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Research on theoretical optimization and experimental verification of minimum resistance hull form based on Rankine source method

Cited by 11 publications

References 5 publications

Hydrodynamic Design Study on Ship Bow and Stern Hull Form Synchronous Optimization Covering Whole Speeds Range

Hydrodynamic Design Study on Ship Bow and Stern Hull Form Synchronous Optimization Covering Whole Speeds Range

An investigation into fishing boat optimisation using a hybrid algorithm

Achieving Drag Reduction with Hullform Improvement in Different Optimizing Methods

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