... form optimization, the initial ship hull surface is represented as Non-Uniform Rational B-Spline (NURBS) surfaces. Then, several hull surface modification methods are utilized to move the control points of NURBS hull surfaces to achieve hull form deformation. For the purpose of illustration...

... of the hull roughness on the flow field are also analysed. INTRODUCTION Ship resistance can be considerably increased by the roughness of the hull surface, which could be caused by coatings, corrosion and biofouling etc. Therefore, the hull roughness effects must be taken into account when evaluating...

... interpolation technology can produce a smooth hull profile; (2) For the KCS ship, under the premise of meeting the engineering constraints, the automatic optimization method of the hull surface based on numerical simulation can obtain a new ship form with better performance of resistance. INTRODUCTION Ship...

... as the initial ship, and the surface deformation method of radial basis interpolation is adopted as the parameterized hull surface modification technology under the condition of ensuring the arrangement constraints. The bow shape value points are changed to generate a series of hull shapes that meet...

... resistance university asymmetric catamaran grid hull fine grid artificial intelligence maneuverability prediction negative rudder angle china rudder angle boundary simulation flow field convergence hull surface positive rudder angle Proceedings of the Thirty-second (2022) International...

... capture its movement in open water like the ship resistance and self-propulsion, including the distributions of the pressure on the hull surface, streamline at the stern and the ship boundary layer caused by propeller suction. Interestingly, the results of the thrust and torque agree well with such both...

... hull performance optimization optimal position hull form hull surface particle swarm optimization algorithm Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25, 2021 Copyright © 2021 by the International Society...

... ABSTRACT Effects of surface roughness and fouling on ship resistance are analyzed by numerical simulation, the fouling covered on hull are graded through the visual inspection, three different hull surface conditions are divided corresponding to three models used to simulate by FLUENT software...

... ABSTRACT To reduce fuel consumption of a ship, a variety of ESDs (Energy Saving Devices) have been developed and installed. In this paper, the fin installed on the stern hull surface is considered. The fins are installed to control the inflow velocity field to propeller by small fins...

... when complex geometry is involved. spatial reasoning reservoir simulation basis function control point geometric modeling machine learning hull radial basis function intersection standard geometric model artificial intelligence interpolation hull surface implicit surface multibody...

... froude number draught difference bulk carrier different condition kvlcc ship model test kriso container ship dimensional result free surface displacement iteration calculation fundamental dimension different depth condition mathematical model ship hull surface Study on Under...

... number floating production system platform roughness upstream oil & gas proceedings roughness effect hull surface natural period international conference arctic engineering non-dimensional amplitude Roughness Effects on the VIM Response of Deep-Draft Semi-Submersible Platforms André...

... resistance objective function original hull validation optimization sectional area curve pitch motion hull surface surrogate model artificial intelligence reduction bulbous bow control point hull form optimization Hull Form Optimization for Reduced Drag and Improved Seakeeping Using...

.... bulbous bow initial bulbous bow hull reduction ship hull bulbous bow generation wave drag coefficient artificial intelligence optimization problem coefficient movable control point hull surface displacement drag coefficient series 60 control point model 5279 optimal bulbous bow marine...

... and KVLCC2 hulls are presented and discussed. hull node heltai marine transportation laplace equation hull surface discretization mesh cad model computational grid simulation boundary condition desimone solver equation cad surface algorithm free surface artificial intelligence...

... demonstrates that the present CFD-based ship hydrodynamic optimization tool can be used to produce an optimal hull form. radial basis function new initial hull sectional area curve coefficient hull form stern end bulb hull surface design variable optimal hull reduction artificial...

... can be classified based on the region of the hull surface where it occurs as bottom slamming, green water loading, breaking water impact and bow flare slamming. Among these kinds of slamming, evaluation of hydrodynamic loading due to bow-flare slamming is still a challenging task. Traditionally...

... response surface method objective function sectional area curve hull form artificial intelligence hull surface design variable optimization tool design speed optimization process modification Hull Form Design Exploration Based on Response Surface Method Hyunyul Kim 1, Shinkyu Jeong 1,2, Chi...

... modification load draft conventional bulbous bow tanker hull surface arctic tanker line angle ballast load draft full load draft A Consideration on Bow Design of Arctic Tanker Transiting in Thin Level Ice and in Broken Ice Channel Kazuo Nozawa Department of Naval Architecture and Ocean Engineering...

... ABSTRACT This paper presents a practical hydrodynamic optimization tool for the design of a monohull ship. The main components of this tool consists of a practical design-oriented CFD tool, a NURBS representation for the hull surface, and a gradient-based optimization procedure. The CFD tool...